Heinz Schmid, Hans Biebuyck, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
We report angle-resolved inverse-photoemission spectroscopy and ultraviolet-photoemission-spectroscopy measurements of the electronic structure of Cu(100), Ni(100), and pseudomorphic films of fcc Co and Fe on Cu(100). The unoccupied critical points at X are determined. These results are combined with recent photoemission data for use as input to an empirical combined- interpolation-scheme calculation of the energy-band dispersions for the allowed bands at k=0. The ferromagnetic exchange splittings of the Δ5-symmetry 3d bands are estimated to be ΔEex=0.3 eV, 1.2 eV, and 1.2 eV for Ni(100), Co(100), and Fe(100), respectively. The exchange splitting of the fcc Fe indicates that films deposited at room temperature are in the predicted low-spin magnetic phase. Annealing the Fe films produces a paramagnetic phase that exhibits no exchange splitting. © 1993 The American Physical Society.
Heinz Schmid, Hans Biebuyck, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
David B. Mitzi
Journal of Materials Chemistry
F.J. Himpsel, T.A. Jung, et al.
Surface Review and Letters
P. Martensson, R.M. Feenstra
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films