Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 76, Issue 4, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.76.044703
Keywords
ferromagnetic Fe; spin wave; tight-binding model; self-energy
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Spin wave excitations and the electron self-energy corrections in the ferromagnetic phase of iron are studied using the Naval Research Laboratory tight-binding model. It is found that the spin wave excitation spectrum obtained with this model is in good agreement with the experimental results. Transverse spin fluctuations contribute to the self-energy and reduce the band width uniformly, but does not cause a prominent kink structure in the quasiparticle dispersion near the fermi level. Comparison with recent angle-resolved photoemission experiments on Fe is made.
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