Surface states of a Pd monolayer formed on a Au(111) surface studied by angle-resolved photoemission spectroscopy

T. Eguchi, A. Kamoshida, M. Ono, M. Hamada, R. Shoda, T. Nishio, A. Harasawa, T. Okuda, T. Kinoshita, Y. Hasegawa

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Electronic states of a Pd-deposited (<1 ML) Au(111) surface have been studied using angle-resolved ultraviolet photoemission spectroscopy. A shoulder induced by Pd deposition was observed on a peak assigned to the Shockley surface states of the Au(111) substrate in the spectra measured around the surface normal direction. The photoemission study revealed that the Pd-induced states have parabolic energy dispersion with an effective mass identical to that of the substrate states while its binding energy is 0.17±0.2 eV smaller than the substrate state. It is also found that the binding energy of the Au substrate surface states decreases with Pd deposition. The spectroscopic properties of the Pd-induced states indicate that the states originate from the Au(111) surface states and are modified by the presence of monolayer Pd islands on the substrate.

本文言語English
論文番号073403
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
74
7
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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