Angle-resolved photoemission spectroscopy study of Fe(110) single crystal: Many-body interactions between quasi-particles at the Fermi level

SURFACE SCIENCE

卷:601

Article; Proceedings Paper

Cui, X. Y. ; Shimada, K. ; Hoesch, M. ; Sakisaka, Y. ; Kato, H. ; Aiura, Y. ; Higashiguchi, M. ; Miura, Y. ; Namatame, H. ; Taniguchi, M.

关键词: angle-resolved photoemission spectroscopy;    Fe(110);    self-energy;    electron-phonon interaction;    electron-magnon interaction;   

DOI  :  10.1016/j.susc.2007.04.069

来源: Elsevier

【 摘 要 】

A high-resolution angle-resolved photoemission spectroscopy (ARPES) study of Fe(110) single crystal was conducted to elucidate many-body interactions between quasi-particles at the Fermi level at low-temperature. Two kink structures were observed in the energy-band dispersion at the binding energies of similar to 40 meV and similar to 270 meV for the bulk-derived band on the majority-spin Fermi surface around the F point. Based on analyses of the experimentally obtained real parts of the self-energy, these kink structures are derived from electron-phonon and electron-magnon interactions. (C) 2007 Elsevier B.V. All rights reserved.

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