F.J. Himpsel, J.A. Knapp, et al.
Physical Review B
Using angle-resolved photoemission with single-crystal Fe(111) and Co(0001), we have determined accurate exchange-split energy-band dispersions E(k→) along symmetry lines. For Fe, Co, and Ni, respectively, occupied d-band widths are 3.1 eV (P), 3.8 eV (L), and 3.4 eV (L,A X), while exchange splittings are ∼1.5 eV (P), ∼1.1 eV (Γ), and 0.3 eV (near L). Comparison with theory shows that state-of-the-art ab initio calculations describe the strong ferromagnets Fe and Co much better than Ni. © 1980 The American Physical Society.
F.J. Himpsel, J.A. Knapp, et al.
Physical Review B
J.A. Carlisle, L.J. Terminello, et al.
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
D. Straub, F.J. Himpsel
Physical Review Letters
F.J. Himpsel, D. Straub, et al.
ICPS Physics of Semiconductors 1984