Figure 70

Fig. 70: (a) Scheme of the sample with an uniform fcc-Fe film with a thickness of 7 ML. A single ⁵⁷Fe monolayer is inserted at various positions within the ⁵⁶Fe film. Layer-resolved spectra have been measured by scanning the beam transversely over the sample. Time spectrum of nuclear specular reflection from the ⁵⁷Fe layer at the interface (b) and from the ⁵⁷Fe layer in the centre of the Fe film (c), respectively.