Publications

NB use carefully: This list is updated regularly but may not be complete.

2024

Dirac-Like Fermions Anomalous Magneto-Transport in a Spin-Polarized Oxide 2D Electron System
Y. Chen, M. D'Antuono, M. Trama, D. Preziosi, B. Jouault, F. Teppe, C. Consejo, C. A. Perroni, R. Citro, D. Stornaiuolo, M. Salluzzo
Adv. Mater. 2410354 (2024).  10.1002/adma.202410354

Spin waves and orbital contribution to ferromagnetism in a topological metal
W. Zhang, T. C. Asmara, Y. Tseng, J. Li, Y. Xiong, Y. Wei, T. Yu, C. W. Galdino, Z. Zhang, K. Kummer, V. N. Strocov, Y. Soh, T. Schmitt, G. Aeppli
Nature Comm. 15, 8905 (2024).  10.1038/s41467-024-53152-1

Achieving High-Voltage Stability in Li-Rich Ni-Rich Oxides with Local W/Ni(Li) Superstructure
X. Gao, B. Li, G. Rousse, A. V. Morozov, M. Deschamps, E. Elkaïm, L. Zhang, K. Kummer, A. M. Abakumov, J.-M. Tarascon
Adv. Energy Mater. 2402793 (2024).  10.1002/aenm.202402793

Controlling 4f antiferromagnetic dynamics via itinerant electronic susceptibility
S.-E. Lee, Y. W. Windsor, D. Zahn, A. Kraiker, K. Kummer, K. Kliemt, C. Krellner, C. Schüßler-Langeheine, N. Pontius, U. Staub, D. V. Vyalikh, A. Ernst, L. Rettig
Phys. Rev. Research 6, 043019 (2024).  10.1103/PhysRevResearch.6.043019

Emergence of Interfacial Magnetism in Strongly-Correlated Nickelate-Titanate Superlattices
T. C. Asmara, R. J. Green, A. Suter, Y. Wei, W. Zhang, D. Knez, G. Harris, Y. Tseng, T. Yu, D. Betto, M. Garcia-Fernandez, S. Agrestini, Y. M. Klein, N. Kumar, C. W. Galdino, Z. Salman, T. Prokscha, M. Medarde, E. Müller, Y. Soh, N. B. Brookes, K.-J. Zhou, M. Radovic, T. Schmitt
Adv. Mater. 2310668 (2024).  10.1002/adma.202310668

A Fundamental Correlative Spectroscopic Study on Li_1-xNiO₂ and NaNiO₂
Q. Jacquet, N. Mozhzhukhina, P. N. O. Gillespie, G. Wittmann, L. Perez Ramirez, F. G. Capone, J.-P. Rueff, S. Belin, R. Dedryvère, L. Stievano, A. Matic, E. Suard, N. B. Brookes, A. Longo, D. Prezzi, S. Lyonnard, A. Iadecola
Adv. Energy Mater. 2401413 (2024).  10.1002/aenm.202401413

Charge response function probed by resonant inelastic x-ray scattering: Signature of electronic gaps of YBa₂Cu₃O_7−δ
G. Merzoni, L. Martinelli, L. Braicovich, N. B. Brookes, F. Lombardi, F. Rosa, R. Arpaia, M. Moretti Sala, G. Ghiringhelli
Phys. Rev. B 109, 184506 (2024).  10.1103/PhysRevB.109.184506

Plasmon dispersion in bilayer cuprate superconductors
M. Bejas, V. Zimmermann, D. Betto, T. D. Boyko, R. J. Green, T. Loew, N. B. Brookes, G. Cristiani, G. Logvenov, M. Minola, B. Keimer, H. Yamase, A. Greco, M. Hepting
Phys. Rev. B 109, 144516 (2024).  10.1103/PhysRevB.109.144516

Detection of a two-phonon mode in a cuprate superconductor via polarimetric resonant inelastic x-ray scattering
K. Scott, E. Kisiel, F. Yakhou, S. Agrestini, M. Garcia-Fernandez, K. Kummer, J. Choi, R. D. Zhong, J. A. Schneeloch, G. D. Gu, Ke-Jin Zhou, N. B. Brookes, A. F. Kemper, M. Minola, F. Boschini, A. Frano, A. Gozar, E. H. da Silva Neto
Phys. Rev. B 109, 125126 (2024).  10.1103/PhysRevB.109.125126

Composite antiferromagnetic and orbital order with altermagnetic properties at a cuprate/manganite interface
S. Sarkar, R. Capu, Y. G. Pashkevich, J. Knobel, M. R. Cantarino, A. Nag, K. Kummer, D. Betto, R. Sant, C. W. Nicholson, J. Khmaladze, K.-J. Zhou, N. B. Brookes, C. Monney, C. Bernhard
PNAS Nexus (2024).  10.1093/pnasnexus/pgae100

Collective Nature of Orbital Excitations in Layered Cuprates in the Absence of Apical Oxygens
L. Martinelli, K. Wohlfeld, J. Pelliciari, R. Arpaia, N. B. Brookes, D. Di Castro, M. G. Fernandez, M. Kang, Y. Krockenberger, K. Kummer, D. E. McNally, E. Paris, T. Schmitt, H. Yamamoto, A. Walters, K.-J. Zhou, L. Braicovich, R. Comin, M. Moretti Sala, T. P. Devereaux, M. Daghofer, G. Ghiringhelli
Phys. Rev. Lett. 132, 066004 (2024).  10.1103/PhysRevLett.132.066004

Evolution of the Magnetic Excitations in Electron-Doped La_2−xCe_xCuO₄
X. T. Li, S. J. Tu, L. Chaix, C. Fawaz, M. d’Astuto, X. Li, F. Yakhou-Harris, K. Kummer, N. B. Brookes, M. Garcia-Fernandez, Ke-Jin Zhou, Z. F. Lin, J. Yuan, K. Jin, M. P. M. Dean, X. Liu
Phys. Rev. Lett. 132, 056002 (2024).  10.1103/PhysRevLett.132.056002

Evidence of Temperature-Dependent Interplay between Spin and Orbital Moment in van der Waals Ferromagnet VI₃
A. De Vita, R. Sant, V. Polewczyk, G. van der Laan, N. B. Brookes, T. Kong, R. J. Cava, G. Rossi, G. Vinai, G. Panaccione
Nano Lett. 24, 1487 (2024).  10.1021/acs.nanolett.3c03525

 

2023

Signature of quantum criticality in cuprates by charge density fluctuations
R. Arpaia, L. Martinelli, M. Moretti Sala, S. Caprara, A. Nag, N. B. Brookes, P. Camisa, Q. Li, Q. Gao, X. Zhou, M. Garcia-Fernandez, K.-J. Zhou, E. Schierle, T. Bauch, Y. Y. Peng, C. Di Castro, M. Grilli, F. Lombardi, L. Braicovich, G. Ghiringhelli
Nature Comm. 14, 7198 (2023).  10.1038/s41467-023-42961-5

Long-lived spin waves in a metallic antiferromagnet
G. Poelchen, J. Hellwig, M. Peters, D. Yu. Usachov, K. Kliemt, C. Laubschat, P. M. Echenique, E. V. Chulkov, C. Krellner, S. S. P. Parkin, D. V. Vyalikh, A. Ernst, K. Kummer 
Nature Comm. 14, 5422 (2023).  10.1038/s41467-023-40963-x

Substrate-dependent spin crossover in an Fe(II) scorpionate complex
M. Pénicaud, E. Martinez, G. Serrano, B. Cortigiani, L. Squillantini, J. H. Gonzalez-Estefan, E. Velez-Fort, M. Duttine, M. Gonidec, P. Rosa, M. Mannini, L. Poggini
J. Mater. Chem. C 11, 11518 (2023).  10.1039/D3TC01620J

Colossal magnetoresistance in EuZn₂P₂ and its electronic and magnetic structure
S. Krebber, M. Kopp, C. Garg, K. Kummer, J. Sichelschmidt, S. Schulz, G. Poelchen, M. Mende, A. V. Virovets, K. Warawa, M. D. Thomson, A. V. Tarasov, D. Yu. Usachov, D. V. Vyalikh, H. G. Roskos, J. Müller, C. Krellner, K. Kliemt
Phys. Rev. B 108, 045116 (2023).  10.1103/PhysRevB.108.045116

Paramagnon dispersion and damping in doped Na_xCa_2−xCuO₂Cl₂
B. W. Lebert, B. Bacq-Labreuil, M. P. M. Dean, K. Ruotsalainen, A. Nicolaou, S. Huotari, I. Yamada, H. Yamamoto, M. Azuma, N. B. Brookes, F. Yakhou, H. Miao, D. Santos-Cottin, B. Lenz, S. Biermann, M. d'Astuto
Phys. Rev. B 108, 024506 (2023).  10.1103/PhysRevB.108.024506

Anisotropic hybridization probed by polarization dependent x-ray absorption spectroscopy in VI₃ van der Waals Mott ferromagnet
R. Sant, A. De Vita, V. Polewczyk, G. M. Pierantozzi, F. Mazzola, G. Vinai, G. van der Laan, G. Panaccione, N. B. Brookes
J. Phys.: Condens. Matter 35, 405601 (2023).  10.1088/1361-648X/ace1bf

A ferromagnetic Eu-Pt surface compound grown below hexagonal boron nitride
A. Mohammed Idris Bakhit, Kh. Ali, A. A. Makarova, I. Pis, F. Bondino, R. Sant, S. P. Dash, R. Castrillo, Y. Hasegawa, J. E. Ortega, L. Fernandez, F. Schiller
Nanoscale 15, 11517 (2023).  10.1039/D3NR00630A

The Extremely Brilliant Source storage ring of the European Synchrotron Radiation Facility
P. Raimondi, C. Benabderrahmane, P. Berkvens, J. C. Biasci, P. Borowiec, J.-F. Bouteille, T. Brochard, N. B. Brookes, N. Carmignani, L. R. Carver, J.-M. Chaize, J. Chavanne, S. Checchia, Y. Chushkin, F. Cianciosi, M. Di Michiel, R. Dimper, A. D’Elia, D. Einfeld, F. Ewald, L. Farvacque, L. Goirand, L. Hardy, J. Jacob, L. Jolly, M. Krisch, G. Le Bec, I. Leconte, S. M. Liuzzo, C. Maccarrone, T. Marchial, D. Martin, M. Mezouar, C. Nevo, T. Perron, E. Plouviez, H. Reichert, P. Renaud, J.-L. Revol, B. Roche, K.-B. Scheidt, V. Serriere, F. Sette, J. Susini, L. Torino, R. Versteegen, S. White, F. Zontone
Communications Physics 6, 82 (2023).  10.1038/s42005-023-01195-z

Orbital selective coupling in CeRh₃B₂: Coexistence of high Curie and high Kondo temperatures
A. Amorese, P. Hansmann, A. Marino, P. Körner, T. Willers, A. Walters, K.-J. Zhou, K. Kummer, N. B. Brookes, H.-J. Lin, C.-T. Chen, P. Lejay, M. W. Haverkort, L. H. Tjeng, A. Severing
Phys. Rev. B 107, 115164 (2023).  10.1103/PhysRevB.107.115164

Three-dimensional tomographic imaging of the magnetization vector field using Fourier transform holography
M. Di Pietro Martínez, A. Wartelle, C. Herrero Martínez, F. Fettar, F. Blondelle, J.-F. Motte, C. Donnelly, L. Turnbull, F. Ogrin, G. van der Laan, H. Popescu, N. Jaouen, F. Yakhou-Harris, G. Beutier
Phys. Rev. B 107, 094425 (2023).  10.1103/PhysRevB.107.094425

Fate of charge order in overdoped La-based cuprates
K. von Arx, Qisi Wang, S. Mustafi, D. G. Mazzone, M. Horio, D. John Mukkattukavil, E. Pomjakushina, S. Pyon, T. Takayama, H. Takagi, T. Kurosawa, N. Momono, M. Oda, N. B. Brookes, D. Betto, W. Zhang, T. C. Asmara, Y. Tseng, T. Schmitt, Y. Sassa, J. Chang 
npj Quantum Mater. 8, 7 (2023).  10.1038/s41535-023-00539-w

 

2022

Kondo quasiparticle dynamics observed by resonant inelastic x-ray scattering
M. C. Rahn, K. Kummer, A. Hariki, K.-H. Ahn, J. Kuneš, A. Amorese, J. D. Denlinger, D.-H. Lu, M. Hashimoto, E. Rienks, M. Valvidares, F. Haslbeck, D. D. Byler, K. J. McClellan, E. D. Bauer, J. X. Zhu, C. H. Booth, A. D. Christianson, J. M. Lawrence, F. Ronning, M. Janoschek
Nature Comm. 13, 6129 (2022).  10.1038/s41467-022-33468-6

Identification of a characteristic doping for charge order phenomena in Bi-2212 cuprates via RIXS
H. Lu, M. Hashimoto, S.-D. Chen, S. Ishida, D. Song, H. Eisaki, A. Nag, M. Garcia-Fernandez, R. Arpaia, G. Ghiringhelli, L. Braicovich, J. Zaanen, B. Moritz, K. Kummer, N. B. Brookes, K.-J. Zhou, Z.-X. Shen, T. P. Devereaux, W.-S. Lee
Phys. Rev. B 106, 155109 (2022).  10.1103/PhysRevB.106.155109

Influence of Orbital Character on the Ground State Electronic Properties in the van Der Waals Transition Metal Iodides VI₃ and CrI₃
A. De Vita, T. T. P. Nguyen, R. Sant, G. M. Pierantozzi, D. Amoroso, C. Bigi, V. Polewczyk, G. Vinai, L. T. Nguyen, T. Kong, J. Fujii, I. Vobornik, N. B. Brookes, G. Rossi, R. J. Cava, F. Mazzola, K. Yamauchi, S. Picozzi, G. Panaccione
Nano Lett. (2022).  10.1021/acs.nanolett.2c01922

Estimating the Orientation of 4f Magnetic Moments by Classical Photoemission
D. Yu. Usachov, D. Glazkova, A. V. Tarasov, S. Schulz, G. Poelchen, K. A. Bokai, O. Yu. Vilkov, P. Dudin, K. Kummer, K. Kliemt, C. Krellner, D. V. Vyalikh
J. Phys. Chem. Lett. 2022, 13, 7861 (2022).  10.1021/acs.jpclett.2c02203

Bulk charge density wave and electron-phonon coupling in superconducting copper oxychlorides
L. Chaix, B. Lebert, H. Miao, A. Nicolaou, F. Yakhou, H. Cercellier, S. Grenier, N. B. Brookes, A. Sulpice, S. Tsutsui, A. Bosak, L. Paolasini, D. Santos-Cottin, H. Yamamoto, I. Yamada, M. Azuma, T. Nishikubo, T. Yamamoto, M. Katsumata, M. P. M. Dean, M. d'Astuto
Phys. Rev. Research 4, 033004 (2022).  10.1103/PhysRevResearch.4.033004

Charge and Spin Order Dichotomy in NdNiO₂ Driven by the Capping Layer
G. Krieger, L. Martinelli, S. Zeng, L. E. Chow, K. Kummer, R. Arpaia, M. Moretti Sala, N. B. Brookes, A. Ariando, N. Viart, M. Salluzzo, G. Ghiringhelli, D. Preziosi
Phys. Rev. Lett. 129, 027002 (2022).  10.1103/PhysRevLett.129.027002

Slow Magnetic Relaxation of Dy Adatoms with In-Plane Magnetic Anisotropy on a Two-Dimensional Electron Gas
V. Bellini, S. Rusponi, J. Kolorenc, S. K. Mahatha, M. Angel Valbuena, L. Persichetti, M. Pivetta, B. V. Sorokin, D. Merk, S. Reynaud, D. Sblendorio, S. Stepanow, C. Nistor, P. Gargiani, D. Betto, A. Mugarza, P. Gambardella, H. Brune, C. Carbone, A. Barla
ACS Nano (2022).  10.1021/acsnano.2c04048

Ferromagnetic Quasi-Two-Dimensional Electron Gas with Trigonal Crystal Field Splitting
Y. Chen, M. D’Antuono, N. B. Brookes, G. M. De Luca, R. Di Capua, E. Di Gennaro, G. Ghiringhelli, C. Piamonteze, D. Preziosi, B. Jouault, M. Cabero, J. M. Gonzalez-Calbet, C. Leon, J. Santamaria, A. Sambri, D. Stornaiuolo, M. Salluzzo
ACS Appl. Electron. Mater. 4, 3226, 2022.  10.1021/acsaelm.2c00447

Fractional Spin Excitations in the Infinite-Layer Cuprate CaCuO₂
L. Martinelli, D. Betto, K. Kummer, R. Arpaia, L. Braicovich, D. Di Castro, N. B. Brookes, M. Moretti Sala, G. Ghiringhelli
Phys. Rev. X 12, 021041 (2022).  10.1103/PhysRevX.12.021041

Metamagnetism and crystal-field splitting in pseudohexagonal CeRh₃Si₂
A. Amorese, D. Khalyavin, K. Kummer, N. B. Brookes, C. Ritter, O. Zaharko, C. Buhl Larsen, O. Pavlosiuk, A. P. Pikul, D. Kaczorowski, M. Gutmann, A. T. Boothroyd, A. Severing, D. T. Adroja
Phys. Rev. B 105, 125119 (2022).  10.1103/PhysRevB.105.125119

Doping dependence of the electron-phonon coupling in two families of bilayer superconducting cuprates
Y. Peng, L. Martinelli, Q. Li, M. Rossi, M. Mitrano, R. Arpaia, M. Moretti Sala, Q. Gao, X. Guo, G. M. De Luca, A. Walters, A. Nag, A. Barbour, G. Gu, J. Pelliciari, N. B. Brookes, P. Abbamonte, M. Salluzzo, X. Zhou, K.-J. Zhou, V. Bisogni, L. Braicovich, S. Johnston, G. Ghiringhelli
Phys. Rev. B 105, 115105 (2022).  10.1103/PhysRevB.105.115105

Interlayer Coupling of a Two-Dimensional Kondo Lattice with a Ferromagnetic Surface in the Antiferromagnet CeCo₂P₂
G. Poelchen, I. P. Rusinov, S. Schulz, M. Güttler, M. Mende, A. Generalov, D. Yu. Usachov, S. Danzenbächer, J. Hellwig, M. Peters, K. Kliemt, Yu. Kucherenko, V. N. Antonov, C. Laubschat, E. V. Chulkov, A. Ernst, K. Kummer, C. Krellner, D. V. Vyalikh
ACS Nano 16, 3573 (2022).  10.1021/acsnano.1c10705

Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl₂Ba₂CuO₆₊\({\delta}\)
C. C. Tam, M. Zhu, J. Ayres, K. Kummer, F. Yakhou-Harris, J. R. Cooper, A. Carrington, S. M. Hayden 
Nature Comm. 13, 570 (2022).  10.1038/s41467-022-28124-y

Ferromagnetism and Rashba Spin–Orbit Coupling in the Two-Dimensional (V,Pt)Se₂ Alloy
E. Vélez-Fort, A. Hallal, R. Sant, T. Guillet, K. Abdukayumov, A. Marty, C. Vergnaud, J.-F. Jacquot, D. Jalabert, J. Fujii, I. Vobornik, J Rault, N. B. Brookes, D. Longo, P. Ohresser, A. Ouerghi, J.-Y. Veuillen, P. Mallet, H. Boukari, H. Okuno
ACS Appl. Electron. Mater. 4, 259 (2022).  10.1021/acsaelm.1c00992

Phase diagram of the (Pr_1−ySm_y)_0.7Ca_0.3CoO₃ system: Valence and spin state transition versus ferromagnetism
Y. Bréard, F. Veillon, L. Hervé, V. Hardy, F. Guillou, K. Kummer, F. Wilhelm, A. Rogalev, R. I. Smith
Phys. Rev. Materials 6, 014401 (2022).  10.1103/PhysRevMaterials.6.014401

 

2021

Strong Rashba Effect and Different f−d Hybridization Phenomena at the Surface of the Heavy-Fermion Superconductor CeIrIn₅
M. Mende, K. Ali, G. Poelchen, S. Schulz, V. Mandic, A. V. Tarasov, C. Polley, A. Generalov, A. V. Fedorov, M. Güttler, C. Laubschat, K. Kliemt, Y. M. Koroteev, E. V. Chulkov, K. Kummer, C. Krellner, D. Yu. Usachov, D. V. Vyalikh
Adv. Electron. Mater. 2100768 (2021).   10.1002/aelm.202100768

A full gap above the Fermi level: the charge density wave of monolayer VS₂
C. van Efferen, J. Berges, J. Hall, E. van Loon, S. Kraus, A. Schobert, T. Wekking, F. Huttmann, E. Plaar, N. Rothenbach, K. Ollefs, L. Machado Arruda, N. B. Brookes, G. Schönhoff, K. Kummer, H. Wende, T. Wehling, T. Michely
Nature Comm. 12, 6837 (2021).  10.1038/s41467-021-27094-x

Restored strange metal phase through suppression of charge density waves in underdoped YBa₂Cu₃O_{7–\(\delta\)}
E. Wahlberg, R. Arpaia, G. Seibold, M. Rossi, R. Fumagalli, E. Trabaldo, N. B. Brookes, L. Braicovich, S. Caprara, U. Gran, G. Ghiringhelli, T. Bauch, F. Lombardi
Science 373, 1506 (2021).  10.1126/science.abc8372

Charge Order at High Temperature in Cuprate Superconductors
R. Arpaia, G. Ghiringhelli
J. Phys. Soc. Jpn. 90, 111005 (2021).  10.7566/JPSJ.90.111005

Insight into the Temperature Evolution of Electronic Structure and Mechanism of Exchange Interaction in EuS
A. V. Fedorov, G. Poelchen, S. V. Eremeev, S. Schulz, A. Generalov, C. Polley, C. Laubschat, K. Kliemt, N. Kaya, C. Krellner, E. V. Chulkov, K. Kummer, D. Yu. Usachov, A. Ernst, D. V. Vyalikh
J. Phys. Chem. Lett. 12, 8328 (2021).  10.1021/acs.jpclett.1c02274

Resonant inelastic x-ray scattering study of doping and temperature dependence of low-energy excitations in La_1−xSr_xVO₃ thin films
K. Ruotsalainen, M. Gatti, J. M. Ablett, F. Yakhou-Harris, J.-P. Rueff, A. David, W. Prellier, A. Nicolaou
Phys. Rev. B 103, 235158 (2021).  10.1103/PhysRevB.103.235158

Electronic structure and coexistence of superconductivity with magnetism in RbEuFe₄As₄
T. K. Kim, K. S. Pervakov, D. V. Evtushinsky, S. W. Jung, G. Poelchen, K. Kummer, V. A. Vlasenko, A. V. Sadakov, A. S. Usoltsev, V. M. Pudalov, D. Roditchev, V. S. Stolyarov, D. V. Vyalikh, V. Borisov, R. Valentí, A. Ernst, S. V. Eremeev, E. V. Chulkov
Phys. Rev. B 103, 174517 (2021).  10.1103/PhysRevB.103.174517

Multiple-magnon excitations shape the spin spectrum of cuprate parent compounds
D. Betto, R. Fumagalli, L. Martinelli, M. Rossi, R. Piombo, K. Yoshimi, D. Di Castro, E. Di Gennaro, A. Sambri, D. Bonn, G. A. Sawatzky, L. Braicovich, N. B. Brookes, J. Lorenzana, G. Ghiringhelli
Phys. Rev. B 103, L140409 (2021).  10.1103/PhysRevB.103.L140409

X-ray magnetic linear dichroism study of field-manipulated canted antiferromagnetism in epitaxial \(\alpha \)-Fe₂O₃ films
S. M. Suturin, A. M. Korovin, S. V. Gastev, P. A. Dvortsova, M. P. Volkov, M. Valvidares, N. S. Sokolov
Phys. Rev. Materials 5, 044408 (2021).  10.1103/PhysRevMaterials.5.044408

Visualizing the Kondo lattice crossover in YbRh₂Si₂ with Compton scattering
M. Güttler, K. Kummer, K. Kliemt, C. Krellner, S. Seiro, C. Geibel, C. Laubschat, Y. Kubo, Y. Sakurai, D. V. Vyalikh, A. Koizumi
Phys. Rev. B 103, 115126 (2021).  10.1103/PhysRevB.103.115126

Crystalline and magnetic structure of Ba₂CuO_3+\(\delta\)  investigated by x-ray absorption spectroscopy and resonant inelastic x-ray scattering
R. Fumagalli, A. Nag, S. Agrestini, M. Garcia-Fernandez, A. C.Walters, D. Betto, N. B.Brookes, L. Braicovich, K.-J. Zhou, G. Ghiringhelli, M. Moretti Sala
Physica C 581, 1353810 (2021).  10.1016/j.physc.2020.1353810

Correlation between crystal structure and magnetism in PLD grown epitaxial films of \(\epsilon\)-Fe₂O₃ on GaN
S. M. Suturin, A. M. Korovin, A. A. Sitnikova, D. A. Kirilenko, M. P. Volkov, P. A. Dvortsova, V. A. Ukleev, M. Tabuchi, N. S. Sokolov
Sci. Technol. Adv. Mater. 22, 85 (2021).  10.1080/14686996.2020.1870870

Charge Density Waves in YBa₂Cu₃O_6.67 Probed by Resonant X-Ray Scattering under Uniaxial Compression
H.-H. Kim, E. Lefrançois, K. Kummer, R. Fumagalli, N. B. Brookes, D. Betto, S. Nakata, M. Tortora, J. Porras, T. Loew, M. E. Barber, L. Braicovich, A. P. Mackenzie, C. W. Hicks, B. Keimer, M. Minola, M. Le Tacon
Phys. Rev. Lett. 126, 037002 (2021).  10.1103/PhysRevLett.126.037002

 

2020

Synthesis of epitaxial monolayer Janus SPtSe
R. Sant, M. Gay, A. Marty, S. Lisi, R. Harrabi, C. Vergnaud, M. T. Dau, X. Weng, J. Coraux, N. Gauthier, O. Renault, G. Renaud, M. Jamet
npj 2D Mater Appl 4, 41 (2020).  10.1038/s41699-020-00175-z

Photoelectron diffraction for probing valency and magnetism of 4f-based materials: A view on valence-fluctuating EuIr₂Si₂
D. Yu. Usachov, A. V. Tarasov, S. Schulz, K. A. Bokai, I. I. Tupitsyn, G. Poelchen, S. Seiro, N. Caroca-Canales, K. Kliemt, M. Mende, K. Kummer, C. Krellner, M. Muntwiler, Hang Li, C. Laubschat, C. Geibel, E. V. Chulkov, S. I. Fujimori, D. V. Vyalikh
Phys. Rev. B 102, 205102 (2020).  10.1103/PhysRevB.102.205102

Unexpected differences between surface and bulk spectroscopic and implied Kondo properties of heavy fermion CeRh₂Si₂
G. Poelchen, S. Schulz, M. Mende, M. Güttler, A. Generalov, A. V. Fedorov, N. Caroca-Canales, C. Geibel, K. Kliemt, C. Krellner, S. Danzenbächer, D. Yu. Usachov, P. Dudin, V. N. Antonov, J. W. Allen, C. Laubschat, K. Kummer, Yu. Kucherenko, D. V. Vyalikh
npj Quantum Materials 5, 70 (2020).  10.1038/s41535-020-00273-7

Large Polarons as Key Quasiparticles in SrTiO₃ and SrTiO₃-Based Heterostructures
A. Geondzhian, A. Sambri, G. M. De Luca, R. Di Capua, E. Di Gennaro, D. Betto, M. Rossi, Y. Y. Peng, R. Fumagalli, N. B. Brookes, L. Braicovich, K. Gilmore, G. Ghiringhelli, M. Salluzzo
Phys. Rev. Lett. 125, 126401 (2020).  10.1103/PhysRevLett.125.126401

Spin waves in metallic iron and nickel measured by soft x-ray resonant inelastic scattering
N. B. Brookes, D. Betto, K. Cao, Yi Lu, K. Kummer, F. Giustino
Phys. Rev. B 102, 064412 (2020).  10.1103/PhysRevB.102.064412

Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation
Y. W. Windsor, A. Ernst, K. Kummer, K. Kliemt, Ch. Schüßler-Langeheine, N. Pontius, U. Staub, E. V. Chulkov, C. Krellner, D. V. Vyalikh, L. Rettig
Communications Physics 3, 139 (2020).  10.1038/s42005-020-00407-0

Damping of spinful excitons in LaCoO₃ by thermal fluctuations: Theory and experiment
A. Hariki, R.-P. Wang, A. Sotnikov, K. Tomiyasu, D. Betto, N. B. Brookes, Y. Uemura, M. Ghiasi, F. M. F. de Groot, J. Kuneš
Phys. Rev. B 101, 245162 (2020).  10.1103/PhysRevB.101.245162

Unusual Dynamic Charge Correlations in Simple-Tetragonal HgBa₂CuO_4+\(\delta\)
B. Yu, W. Tabis, I. Bialo, F. Yakhou, N. B. Brookes, Z. Anderson, Y. Tang, G. Yu, M. Greven
Phys. Rev. X 10, 021059 (2020).  10.1103/PhysRevX.10.021059

Spin structure of spin-orbit split surface states in a magnetic material revealed by spin-integrated photoemission
D. Yu. Usachov, M. Güttler, S. Schulz, G. Poelchen, S. Seiro, K. Kliemt, K. Kummer, C. Krellner, C. Laubschat, E. V. Chulkov, D. V. Vyalikh
Phys. Rev. B 101, 245140 (2020).  10.1103/PhysRevB.101.245140

Cubic Rashba Effect in the Surface Spin Structure of Rare-Earth Ternary Materials
D. Yu. Usachov, I. A. Nechaev, G. Poelchen, M. Güttler, E. E. Krasovskii, S. Schulz, A. Generalov, K. Kliemt, A. Kraiker, C. Krellner, K. Kummer, S. Danzenbächer, C. Laubschat, A. P. Weber, J. Sánchez-Barriga, E. V. Chulkov, A. F. Santander-Syro, T. Imai, K. Miyamoto, T. Okuda, D. V. Vyalikh
Phys. Rev. Lett. 124, 237202 (2020).  10.1103/PhysRevLett.124.237202

Strain and electric field control of the orbital and spin order in multiferroic BiMnO₃
G. M. De Luca, C. A. Perroni, R. Di Capua, V. Cataudella, F. Chiarella, M. Minola, N. B. Brookes, M. Salluzzo, G. Ghiringhelli 
Eur. Phys. J. Plus 135, 473 (2020).  10.1140/epjp/s13360-020-00466-w

Determining the electron-phonon coupling in superconducting cuprates by resonant inelastic x-ray scattering: Methods and results on Nd_1+xBa_2−xCu₃O_{7−\(\delta\)}
L. Braicovich, M. Rossi, R. Fumagalli, YY. Peng, Y. Wang, R. Arpaia, D. Betto, G. M. De Luca, D. Di Castro, K. Kummer, M. Moretti Sala, M. Pagetti, G. Balestrino, N. B. Brookes, M. Salluzzo, S. Johnston, J. van den Brink, G. Ghiringhelli
Phys. Rev. Research 2, 023231 (2020).  10.1103/PhysRevResearch.2.023231

Enhanced Magnetism through Oxygenation of FePc/Ag(110) Monolayer Phases
E. Bartolomé, J. Bartolomé, F. Sedona, J. Lobo-Checa, D. Forrer, J. Herrero-Albillos, M. Piantek, J. Herrero-Martín, D. Betto, E. Velez-Fort, L. M. García, M. Panighel, A. Mugarza, M. Sambi, F. Bartolomé
J. Phys. Chem. C 124, 13993 (2020).  10.1021/acs.jpcc.0c01988

Mobile orbitons in Ca₂CuO₃: Crucial role of Hund's exchange
R. Fumagalli, J. Heverhagen, D. Betto, R. Arpaia, M. Rossi, D. Di Castro, N. B. Brookes, M. Moretti Sala, M. Daghofer, L. Braicovich, K. Wohlfeld, G. Ghiringhelli
Phys. Rev. B 101, 205117 (2020).  10.1103/PhysRevB.101.205117

High-Temperature Charge-Stripe Correlations in La_1.675Eu_0.2Sr_0.125CuO₄
Qisi Wang, M. Horio, K. von Arx, Y. Shen, D. John Mukkattukavil, Y. Sassa, O. Ivashko, C.E. Matt, S. Pyon, T. Takayama, H. Takagi, T. Kurosawa, N. Momono, M. Oda, T. Adachi, S.M. Haidar, Y. Koike, Y. Tseng, W. Zhang, J. Zhao, K. Kummer, M. Garcia-Fernandez, Ke-Jin Zhou, N.B. Christensen, H.M. Ronnow, T. Schmitt, J. Chang
Phys. Rev. Lett. 124, 187002 (2020).  10.1103/PhysRevLett.124.187002

X-ray Magnetic Circular Dichroism at the ESRF: Present Capabilities and New Possibilities
A. Rogalev, F. Wilhelm, K. Kummer, N. B. Brookes
Synchrotron Radiation News 33, 30 (2020).  10.1080/08940886.2020.1725799

Unconventional Spin Relaxation Involving Localized Vibrational Modes in Ho Single-Atom Magnets
F. Donati, S. Rusponi, S. Stepanow, L. Persichetti, A. Singha, D. M. Juraschek, C. Wäckerlin, R. Baltic, M. Pivetta, K. Diller, C. Nistor, J. Dreiser, K. Kummer, E. Velez-Fort, N. A. Spaldin, H. Brune, P. Gambardella
Phys. Rev. Lett. 124, 077204 (2020).  10.1103/PhysRevLett.124.077204

 

2019

Formation of Incommensurate Charge Density Waves in Cuprates
H. Miao, R. Fumagalli, M. Rossi, J. Lorenzana, G. Seibold, F. Yakhou-Harris, K. Kummer, N. B. Brookes, G. D. Gu, L. Braicovich, G. Ghiringhelli, M. P. M. Dean
Phys. Rev. X 9, 031042 (2019).  10.1103/PhysRevX.9.031042

Anisotropic damping and wave vector dependent susceptibility of the spin fluctuations in La_2−xSr_xCuO₄ studied by resonant inelastic x-ray scattering
H. C. Robarts, M. Barthélemy, K. Kummer, M. García-Fernández, J. Li, A. Nag, A. C. Walters, K. J. Zhou, S. M. Hayden
Phys. Rev. B 100, 214510 (2019).  10.1103/PhysRevB.100.214510

High-resolution soft X-ray resonant inelastic X-ray scattering
N. B. Brookes
In: E. Jaeschke, S. Khan, J. R. Schneider, J. B. Hastings (eds), "Synchrotron Light Sources and Free-Electron Lasers", Springer (2019).  10.1007/978-3-319-04507-8_75-1

Extreme biomimetics: Preservation of molecular detail in centimeter-scale samples of biological meshes laid down by sponges
I. Petrenko, A. P. Summers, P. Simon, S Zoltowska-Aksamitowska, M. Motylenko, C. Schimpf, D. Rafaja, F. Roth, K. Kummer, E. Brendler, O. S. Pokrovsky, R. Galli, M. Wysokowski, H.  Meissner, E. Niederschlag, Y. Joseph, S. L. Molodtsov, A. Ereskovsky, V. Sivkov, S. Nekipelov, O. Petrova, O. Volkova, M. Bertau, M. Kraft, A. Rogalev, M. Kopani, T. Jesionowski, H. Ehrlich
Sci. Adv. 5, eaax2805 (2019).  10.1126/sciadv.aax2805

Resonant inelastic x-ray scattering investigation of the crystal-field splitting of Sm³⁺ in SmB₆
A. Amorese, O. Stockert, K. Kummer, N. B. Brookes, D.-J. Kim, Z. Fisk, M. W. Haverkort, P. Thalmeier, L. H. Tjeng, A. Severing
Phys. Rev. B 100, 241107(R) (2019).  10.1103/PhysRevB.100.241107

Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-T_c superconductor
R. Arpaia, S. Caprara, R. Fumagalli, G. De Vecchi, Y. Y. Peng, E. Andersson, D. Betto, G. M. De Luca, N. B. Brookes, F. Lombardi, M. Salluzzo, L. Braicovich, C. Di Castro, M. Grilli, G. Ghiringhelli
Science 365, 906 (2019).  10.1126/science.aav1315

Magnetic properties of on-surface synthesized single-ion molecular magnets
K. Diller, A. Singha, M. Pivetta, C. Wäckerlin, R. Hellwig, A. Verdini, A. Cossaro, L. Floreano, E. Vélez-Fort, J. Dreiser, S. Rusponi, H. Brune
RSC Advances 9, 34421 (2019).  10.1039/C9RA06803A

Origin of two-dimensional electronic states at Si- and Gd-terminated surfaces of GdRh₂Si₂
A. Yu. Vyazovskaya, M. M. Otrokov, Yu. M. Koroteev, K. Kummer, M. Güttler, D. V. Vyalikh, E. V. Chulkov
Phys. Rev. B 100, 075140 (2019).  10.1103/PhysRevB.100.075140

Vanadyl phthalocyanines on graphene/SiC(0001): toward a hybrid architecture for molecular spin qubits
I. Cimatti, L. Bondì, G. Serrano, L. Malavolti, B. Cortigiani, E. Velez-Fort, D. Betto, A. Ouerghi, N. B. Brookes, S. Loth, M. Mannini, F. Totti, R. Sessoli
Nanoscale Horizons 4, 1202 (2019).  10.1039/c9nh00023b

Charge, lattice and magnetism across the valence crossover in EuIr₂Si₂ single crystals
S. Seiro, Yu. Prots, K. Kummer, H. Rosner, R. Cardoso Gil, C. Geibel
J. Phys.: Condens. Matter 31, 305602 (2019).  10.1088/1361-648X/ab1509

Experimental Determination of Momentum-Resolved Electron-Phonon Coupling
M. Rossi, R. Arpaia, R. Fumagalli, M. Moretti Sala, D. Betto, K. Kummer, G. M. De Luca, J. van den Brink, M. Salluzzo, N. B. Brookes, L. Braicovich, G. Ghiringhelli
Phys. Rev. Lett. 123, 027001 (2019).  10.1103/PhysRevLett.123.027001

Emerging 2D-ferromagnetism and strong spin-orbit coupling at the surface of valence-fluctuating EuIr₂Si₂
S. Schulz, I. A. Nechaev, M. Güttler, G. Poelchen, A. Generalov, S. Danzenbächer, A. Chikina, S. Seiro, K. Kliemt, A. Yu. Vyazovskaya, T. K. Kim, P. Dudin, E. V. Chulkov, C. Laubschat, E. E. Krasovskii, C. Geibel, C. Krellner, K. Kummer, D. V. Vyalikh
npj Quantum Materials 4, 26 (2019).   10.1038/s41535-019-0166-z

Metamagnetic texture in a polar antiferromagnet
D. A. Sokolov, N. Kikugawa, T. Helm, H. Borrmann, U. Burkhardt, R. Cubitt, J. S. White, E. Ressouche, M. Bleuel, K. Kummer, A. P. Mackenzie, U. K. Rößler
Nature Physics 15, 671 (2019).   10.1038/s41567-019-0501-0

Resonant inelastic x-ray scattering study of bond order and spin excitations in nickelate thin-film structures
K. Fürsich, Y. Lu, D. Betto, M. Bluschke, J. Porras, E. Schierle, R. Ortiz, H. Suzuki, G. Cristiani, G. Logvenov, N. B. Brookes, M. W. Haverkort, M. Le Tacon, E. Benckiser, M. Minola, B. Keimer
Phys. Rev. B 99, 165124 (2019).   10.1103/PhysRevB.99.165124

Polarization-resolved Cu L₃-edge resonant inelastic x-ray scattering of orbital and spin excitations in NdBa₂Cu₃O_7-δ
R. Fumagalli, L. Braicovich, M. Minola, Y. Y. Peng, K. Kummer, D. Betto, M. Rossi, E. Lefrançois, C. Morawe, M. Salluzzo, H. Suzuki, F. Yakhou, M. Le Tacon, B. Keimer, N. B. Brookes, M. Moretti Sala, G. Ghiringhelli
Phys. Rev. B 99, 134517 (2019).   10.1103/PhysRevB.99.134517

Divalent EuRh₂Si₂ as a reference for the Luttinger theorem and antiferromagnetism in trivalent heavy-fermion YbRh₂Si₂
M. Güttler, A. Generalov, S. I. Fujimori, K. Kummer, A. Chikina, S. Seiro, S. Danzenbächer, Yu. M. Koroteev, E. V. Chulkov, M. Radovic, M. Shi, N. C. Plumb, C. Laubschat, J. W. Allen, C. Krellner, C. Geibel, D. V. Vyalikh
Nature Comm. 10, 796 (2019).   10.1038/s41467-019-08688-y

Enhanced spatial resolution of commercial soft X-ray CCD detectors by single-photon centroid reconstruction
A. Amorese, C. Langini, G.Dellea, K. Kummer, N. B. Brookes, L. Braicovich, G. Ghiringhelli
Nucl. Instrum. Methods A (2019).   10.1016/j.nima.2019.03.010

Europium Cyclooctatetraene Nanowire Carpets: A Low-Dimensional, Organometallic, and Ferromagnetic Insulator
F. Huttmann, N. Rothenbach, S. Kraus, K. Ollefs, L. M. Arruda , M. Bernien, D. Thonig, A. Delin, J. Fransson, K. Kummer, N. B. Brookes, O. Eriksson, W. Kuch, T. Michely, H. Wende
J. Phys. Chem. Lett. 10, 911 (2019).  10.1021/acs.jpclett.8b03711

Paramagnon dispersion in β-FeSe observed by Fe L-edge resonant inelastic x-ray scattering
M. C. Rahn, K. Kummer, N. B. Brookes, A. A. Haghighirad, K. Gilmore, A. T. Boothroyd
Phys. Rev. B 99, 014505 (2019).  10.1103/PhysRevB.99.014505

 

2018

Depth-resolved resonant inelastic x-ray scattering at a superconductor/half-metallic-ferromagnet interface through standing wave excitation
C.-T. Kuo, S.-C. Lin, G. Ghiringhelli, Y.Y. Peng, G. M. De Luca, D. Di Castro, D. Betto, M. Gehlmann, T. Wijnands, M. Huijben, J. Meyer-Ilse, E. Gullikson, J. B. Kortright, A. Vailionis, N. Gauquelin, J. Verbeeck, T. Gerber, G. Balestrino, N. B. Brookes, L. Braicovich, C. S. Fadley
Phys. Rev. B 98, 235146 (2018).   10.1103/PhysRevB.98.235146

Probing the energy gap of high-temperature cuprate superconductors by resonant inelastic x-ray scattering
H. Suzuki, M. Minola, Y. Lu, Y.Y. Peng, R. Fumagalli, E. Lefrançois, T. Loew, J. Porras, K. Kummer, D. Betto, S. Ishida, H. Eisaki, C. Hu, X. Zhou, M. W. Haverkort, N. B. Brookes, L. Braicovich, G. Ghiringhelli, M. Le Tacon, and B. Keimer
npj Quantum Materials 3, 65 (2018).  10.1038/s41535-018-0139-7

Three-dimensional collective charge excitations in electron-doped copper oxide superconductors
M. Hepting, L. Chaix, E. W. Huang, R. Fumagalli, Y. Y. Peng, B. Moritz, K. Kummer, N. B. Brookes, W. C. Lee, M. Hashimoto, T. Sarkar, J.-F. He, C. R. Rotundu, Y. S. Lee, R. L. Greene, L. Braicovich, G. Ghiringhelli, Z. X. Shen, T. P. Devereaux, W. S. Lee
Nature 563, 374 (2018).  10.1038/s41586-018-0648-3

The beamline ID32 at the ESRF for soft X-ray high energy resolution resonant inelastic X-ray scattering and polarization dependent X-ray absorption spectroscopy
N.B. Brookes, F. Yakhou-Harris, K. Kummer, A. Fondacaro, J.C. Cezar,D. Betto, E. Velez-Fort, A. Amorese, G. Ghiringhelli, L. Braicovich, R. Barrett, G. Berruyer, F.Cianciosi, L. Eybert, P. Marion, P. van der Linden, L. Zhang
Nucl. Instrum. Methods A 903, 175 (2018).  10.1016/j.nima.2018.07.001

Coupling between dynamic magnetic and charge-order correlations in the cuprate superconductor Nd_2−xCe_xCuO₄
E. H. da Silva Neto, M. Minola, B. Yu, W. Tabis, M. Bluschke, D. Unruh, H. Suzuki, Y. Li, G. Yu, D. Betto, K. Kummer, F. Yakhou, N. B. Brookes, M. Le Tacon, M. Greven, B. Keimer, A. Damascelli
Phys. Rev. B 98, 161114(R) (2018).  10.1103/PhysRevB.98.161114

Dispersion, damping, and intensity of spin excitations in the monolayer (Bi,Pb)2(Sr,La)2CuO6+δ cuprate superconductor family
Y. Y. Peng, E. W. Huang, R. Fumagalli, M. Minola, Y. Wang, X. Sun, Y. Ding, K. Kummer, X. J. Zhou, N. B. Brookes, B. Moritz, L. Braicovich, T. P. Devereaux, G. Ghiringhelli
Phys. Rev. B 98, 144507 (2018).  10.1103/PhysRevB.98.144507

Symmetry breaking at the (111) interfaces of SrTiO₃ hosting a two-dimensional electron system
G. M. De Luca, R. Di Capua, E. Di Gennaro, A. Sambri, F. Miletto Granozio, G. Ghiringhelli, D. Betto, C. Piamonteze, N. B. Brookes, M. Salluzzo
Phys. Rev. B 98, 115143 (2018).  10.1103/PhysRevB.98.115143

Towards microscopic control of the magnetic exchange coupling at the surface of a topological insulator
P. Rüßmann, S. K. Mahatha, P. Sessi, M. A. Valbuena, T. Bathon, K. Fauth, S. Godey, A. Mugarza, K. A. Kokh, O. E. Tereshchenko, P. Gargiani, M. Valvidares, E. Jiménez, N. B Brookes, M. Bode, G. Bihlmayer, S. Blügel, P. Mavropoulos, C. Carbone, A. Barla
Journal of Physics: Materials 1, 015002 (2018).  10.1088/2515-7639/aad02a

Determining the local low-energy excitations in the Kondo semimetal CeRu₄Sn₆ using resonant inelastic x-ray scattering
A. Amorese, K. Kummer, N. B. Brookes, O. Stockert, D. T. Adroja, A. M. Strydom, A. Sidorenko, H. Winkler, D. A. Zocco, A. Prokofiev, S. Paschen, M. W. Haverkort, L. H. Tjeng, A. Severing
Phys. Rev. B 98, 081116(R) (2018).  10.1103/PhysRevB.98.081116

Site-Selective Probe of Magnetic Excitations in Rare-Earth Nickelates Using Resonant Inelastic X-ray Scattering
Y. Lu, D. Betto, K. Fürsich, H. Suzuki, H.-H. Kim, G. Cristiani, G. Logvenov, N. B. Brookes, E. Benckiser, M. W. Haverkort, G. Khaliullin, M. Le Tacon, M. Minola, and B. Keimer
Phys. Rev. X 8, 031014 (2018).  10.1103/PhysRevX.8.031014

Electronic Structure and Enhanced Charge-Density Wave Order of Monolayer VSe₂
J. Feng, D. Biswas, A. Rajan, M. D. Watson, F. Mazzola, O. J. Clark, K. Underwood, I. Markovict, M. McLaren, A. Hunter, D. M. Burn, L. B. Duffy, S. Barua, G. Balakrishnan, F. Bertran, P. Le Fevre, T. K. Kim, G. van der Laan, T. Hesjedal , P. Wahl , P. D. C. King
Nano Lett. 18, 4493 (2018).  10.1021/acs.nanolett.8b01649

Crystal electric field in CeRh₂Si₂ studied with high-resolution resonant inelastic soft x-ray scattering
A. Amorese, N. Caroca-Canales, S. Seiro, C. Krellner, G. Ghiringhelli, N. B. Brookes, D. V. Vyalikh, C. Geibel, K. Kummer
Phys. Rev. B 97, 245130 (2018).  10.1103/PhysRevB.97.245130

Re-entrant charge order in overdoped (Bi,Pb)_2.12Sr_1.88CuO_6+δ outside the pseudogap regime
Y. Y. Peng, R. Fumagalli, Y. Ding, M. Minola, S. Caprara, D. Betto, M. Bluschke, G. M. De Luca, K. Kummer, E. Lefrançois, M. Salluzzo, H. Suzuki, M. Le Tacon, X. J. Zhou, N. B. Brookes, B. Keimer, L. Braicovich, M. Grilli, G. Ghiringhelli
Nature Materials 17, 697 (2018).  10.1038/s41563-018-0108-3

Microscopic effects of Dy doping in the topological insulator Bi₂Te₃
L. B. Duffy, N.-J. Steinke, J. A. Krieger, A. I. Figueroa, K. Kummer, T. Lancaster, S. R. Giblin, F. L. Pratt, S. J. Blundell, T. Prokscha, A. Suter, S. Langridge, V. N. Strocov, Z. Salman, G. van der Laan, T. Hesjedal
Phys. Rev. B 97, 174427 (2018).  10.1103/PhysRevB.97.174427

Systematics of electronic and magnetic properties in the transition metal doped Sb₂Te₃ quantum anomalous Hall platform
M. F. Islam, C. M. Canali, A. Pertsova, A. Balatsky, S. K. Mahatha, C. Carbone, A. Barla, K. A. Kokh, O. E. Tereshchenko, E. Jiménez, N. B. Brookes, P. Gargiani, M. Valvidares, S. Schatz, T. R. F. Peixoto, H. Bentmann, F. Reinert, J. Jung, T. Bathon, K. Fauth, M. Bode, P. Sessi
Phys. Rev. B 97, 155429 (2018).  10.1103/PhysRevB.97.155429

Evolution of ground-state wave function in CeCoIn₅ upon Cd or Sn doping
K. Chen, F. Strigari, M. Sundermann, Z. Hu, Z. Fisk, E. D. Bauer, P. F. S. Rosa, J. L. Sarrao, J. D. Thompson, J. Herrero-Martin, E. Pellegrin, D. Betto, K. Kummer, A. Tanaka, S. Wirth, A. Severing
Phys. Rev. B 97, 045134  (2018).  10.1103/PhysRevB.97.045134

Magnetic bistability of a TbPc₂ submonolayer on a graphene/SiC(0001) conductive electrode
G. Serrano, E. Velez-Fort, I. Cimatti, B. Cortigiani, L. Malavolti, D. Betto, A. Ouerghi, N. B. Brookes, M. Mannini, R. Sessoli
Nanoscale 10, 2715 (2018).  10.1039/C7NR08372F

Probing magnetic coupling between LnPc₂ (Ln = Tb, Er) molecules and the graphene/Ni (111) substrate with and without Au-intercalation: role of the dipolar field
V. Corradini, A. Candini, D. Klar, R. Biagi, V. De Renzi, A. Lodi Rizzini, N. Cavani, U. del Pennino, S. Klyatskaya, M. Ruben, E. Velez-Fort, K. Kummer, N. B. Brookes, P. Gargiani, H. Wende, M. Affronte
Nanoscale 10, 277 (2018).  10.1039/c7nr06610d

 

2017

High-temperature charge density wave correlations in La_1.875Ba_0.125CuO₄ without spin–charge locking
H. Miao, J. Lorenzana, G. Seibold, Y. Y. Peng, A. Amorese, F. Yakhou-Harris, K. Kummer, N. B. Brookes, R. M. Konik, V. Thampy, G. D. Gu, G. Ghiringhelli, L. Braicovich, M. P. M. Dean
PNAS 114, 12430 (2017).  10.1073/pnas.1708549114

Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors
Y. Y. Peng, G. Dellea, M. Minola, M. Conni, A. Amorese, D. Di Castro, G. M. De Luca, K. Kummer, M. Salluzzo, X. Sun, X. J. Zhou, G. Balestrino, M. Le Tacon, B. Keimer, L. Braicovich, N. B. Brookes, G. Ghiringhelli
Nature Physics 13, 1201 (2017).  10.1038/nphys4248

Three-dimensional dispersion of spin waves measured in NiO by resonant inelastic x-ray scattering
D. Betto, Y. Y. Peng, S. B. Porter, G. Berti, A. Calloni, G. Ghiringhelli, and N. B. Brookes
Phys. Rev. B 96, 020409(R) (2017).  10.1103/PhysRevB.96.020409

Structure, site-specific magnetism, and magnetotransport properties of epitaxial D0₂₂-structure Mn₂Fe_xGa thin films
D. Betto, Y.-C. Lau, K. Borisov, K. Kummer, N. B. Brookes, P. Stamenov, J. M. D. Coey, K. Rode
Phys. Rev. B  96, 024408 (2017).  10.1103/PhysRevB.96.024408

Dispersive charge density wave excitations in Bi₂Sr₂CaCu₂O_8+δ
L. Chaix, G. Ghiringhelli, Y. Y. Peng, M. Hashimoto, B. Moritz, K. Kummer, N. B. Brookes, Y. He, S. Chen, S. Ishida, Y. Yoshida, H. Eisaki, M. Salluzzo, L. Braicovich, Z.-X. Shen, T. P. Devereaux, W.-S. Lee
Nature Physics 13, 952 (2017).  10.1038/nphys4157

Magnetic proximity coupling to Cr-doped Sb₂Te₃ thin films
L. B. Duffy, A. I. Figueroa, Ł. Gładczuk, N.-J. Steinke, K. Kummer, G. van der Laan, and T. Hesjedal
Phys. Rev. B 95, 224422 (2017).  10.1103/PhysRevB.95.224422

Valence and spin-state transition in cobaltates revisited by x-ray magnetic circular dichroism
F. Guillou, K. Kummer, Y. Bréard, L. Hervé, and V. Hardy
Phys. Rev. B 95, 174445 (2017).  10.1103/PhysRevB.95.174445

Low-Temperature Magnetic Force Microscopy on Single Molecule Magnet-Based Microarrays
M. Serri, M. Mannini, L. Poggini, E. Vélez-Fort, B. Cortigiani, P. Sainctavit, D. Rovai, A. Caneschi, R. Sessoli
Nano Lett. 17, 1899 (2017).  10.1021/acs.nanolett.6b05208

RixsToolBox: software for the analysis of soft X-ray RIXS data acquired with 2D detectors
K. Kummer, A. Tamborrino, A. Amorese, M. Minola, L. Braicovich, N. B. Brookes, G. Ghiringhelli
Journal of Synchrotron Radiation 24,  531 (2017).  10.1107/S1600577517000832

GdRh₂Si₂: An exemplary tetragonal system for antiferromagnetic order with weak in-plane anisotropy
K. Kliemt, M. Hofmann-Kliemt, K. Kummer, F. Yakhou-Harris, C. Krellner, and C. Geibel
Phys. Rev. B 95, 134403 (2017).  10.1103/PhysRevB.95.134403

X-ray magnetic circular dichroism study of Dy-doped Bi₂Te₃ topological insulator thin films
A. I. Figueroa, A. A. Baker, S. E. Harrison, K. Kummer, G. van der Laan, T. Hesjedal
Journal of Magnetism and Magnetic Materials 422, 93 (2017).  10.1016/j.jmmm.2016.08.063

 

2016

Direct observation of charge order in underdoped and optimally doped Bi₂(Sr,La)₂CuO_6+δ by resonant inelastic x-ray scattering
Y. Y. Peng, M. Salluzzo, X. Sun, A. Ponti, D. Betto, A. M. Ferretti, F. Fumagalli, K. Kummer, M. Le Tacon, X. J. Zhou, N. B. Brookes, L. Braicovich, and G. Ghiringhelli
Phys. Rev. B 94, 184511 (2016).  10.1103/PhysRevB.94.184511

X-ray absorption and emission spectroscopy study of Mn and Co valence and spin states in TbMn_1−xCo_xO₃
V. Cuartero, S. Lafuerza, M. Rovezzi, J. García, J. Blasco, G. Subías, E. Jiménez
Phys. Rev. B 94, 155117 (2016).  10.1103/PhysRevB.94.155117

Time-resolved imaging of magnetic vortex dynamics using holography with extended reference autocorrelation by linear differential operator
N. Bukin, C. McKeever, E. Burgos-Parra, P. S. Keatley, R. J. Hicken, F. Y. Ogrin, G. Beutier, M. Dupraz, H. Popescu, N. Jaouen, F. Yakhou-Harris, S. A. Cavill, G. van der Laan
Scientific Reports 6, 36307 (2016).  10.1038/srep36307

Molecular Order in Buried Layers of TbPc₂ Single-Molecule Magnets Detected by Torque Magnetometry
M. Perfetti, M. Serri, L. Poggini, M. Mannini, D. Rovai, P. Sainctavit, S. Heutz, R. Sessoli
Advanced Materials 28,  6946 (2016).  10.1002/adma.201600791

Magnetic remanence in single atoms
F. Donati, S. Rusponi, S. Stepanow, C. Wäckerlin, A. Singha, L. Persichetti, R. Baltic, K. Diller, F. Patthey, E. Fernandes, J. Dreiser, Ž. Šljivančanin, K. Kummer, C. Nistor, P. Gambardella, H. Brune
Science 352, 318 (2016).  10.1126/science.aad9898

The high-field magnet endstation for X-ray magnetic dichroism experiments at ESRF soft X-ray beamline ID32
K. Kummer, A. Fondacaro, E. Jimenez, E. Velez-Fort, A. Amorese, M. Aspbury, F. Yakhou-Harris, P. van der Linden, N. B. Brookes
Journal of Synchrotron Radiation 23,  464 (2016).  10.1107/S160057751600179X

Robust and tunable itinerant ferromagnetism at the silicon surface of the antiferromagnet GdRh₂Si₂
M. Güttler, A. Generalov, M. M. Otrokov, K. Kummer, K. Kliemt, A. Fedorov, A. Chikina, S. Danzenbächer, S. Schulz, E. V. Chulkov, Yu. M. Koroteev, N. Caroca-Canales, M. Shi, M. Radovic, C. Geibel, C. Laubschat, P. Dudin, T. K. Kim, M. Hoesch, C. Krellner, D. V. Vyalikh
Scientific Reports 6, 24254 (2016).  10.1038/srep24254

 

2015

X-ray magnetic circular dichroism on La_2/3Ca_1/3Mn_0.97Fe_0.03O₃ thin films
A. I. Figueroa, G. E. Campillo, A. A. Baker, J. A. Osorio, O. L. Arnache, G. van der Laan
Superlattices and Microstructures 87, 42 (2015).  10.1016/j.spmi.2015.07.009

Magnetic proximity-enhanced Curie temperature of Cr-doped Bi₂Se₃ thin films
A. A. Baker, A. I. Figueroa, K. Kummer, L. J. Collins-McIntyre, T. Hesjedal, G. van der Laan
Phys. Rev. B 92, 094420 (2015).  10.1103/PhysRevB.92.094420