High-Resolution Angle-Resolved Photoemission Study of the Al(100) Single Crystal

J. Jiang; M. Higashiguchi; N. Tobida; K. Tanaka; S. Fukuda; H. Hayashi; K. Shimada; H. Namatame; M. Taniguchi

doi:10.1380/ejssnt.2009.57

Conference -ISSS-5-

High-Resolution Angle-Resolved Photoemission Study of the Al(100) Single Crystal

J. Jiang, M. Higashiguchi, N. Tobida, K. Tanaka, S. Fukuda, H. Hayashi, K. Shimada, H. Namatame, M. Taniguchi

Author information

J. Jiang
Graduate School of Science, Hiroshima University, Japan
M. Higashiguchi
Graduate School of Science, Hiroshima University, Japan
N. Tobida
Graduate School of Science, Hiroshima University, Japan
K. Tanaka
Graduate School of Science, Hiroshima University, Japan
S. Fukuda
Graduate School of Science, Hiroshima University, Japan
H. Hayashi
Graduate School of Science, Hiroshima University, Japan
K. Shimada
Hiroshima Synchrotron Radiation Center, Hiroshima University, Japan
H. Namatame
Hiroshima Synchrotron Radiation Center, Hiroshima University, Japan
M. Taniguchi
Hiroshima Synchrotron Radiation Center, Hiroshima University, Japan

Keywords: Synchrotron radiation photoelectron spectroscopy, Aluminum, High index single crystal surfaces, Metallic surfaces, Phonons

JOURNAL FREE ACCESS

2009 Volume 7 Pages 57-60

DOI https://doi.org/10.1380/ejssnt.2009.57

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Abstract

The free-electron-like surface-derived electronic state in Al(100) has been examined in detail by high-resolution angle-resolved photoemission spectroscopy (ARPES). We observed a kink structure in the energy band-dispersion at the energy of ∼ -40 meV, which is derived from the electron-phonon interaction. Based on the quantitative analyses of the ARPES line shapes, we have obtained the imaginary and real parts of the self-energy. The electron-phonon coupling parameter has been evaluated to be λ_el-ph = 0.67, which is much larger than the electron-electron coupling parameter λ_el-el = 0.06. [DOI: 10.1380/ejssnt.2009.57]

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