Fig. 28: Fe 2p photoemission of a ferromagnetic film of 10 ML evaporated onto Cu(110) measured at a photon energy of 900 eV. Spectra with left and right circular polarisation (solid and dotted lines) perpendicular to the magnetisation direction and the resulting magnetic dichroism (solid symbols) are shown at the top and bottom of the figure. The Fe dichroism spectrum calculated in the independent particle model (thin line) is also included. Inset - Experimental geometry: P is the helicity vector of the incident circularly polarised light, M is the sample magnetisation direction and e gives the cone in which the emitted electrons are detected.