Resonant photoemission study on valence band satellites of CuxNi1-x and AgxPd1-x Alloy systems

Tsuneaki Miyahara, Takaaki Hanyu, Hiroyoshi Ishii, Hiromichi Kataura, Mihiro Yanagihara, Atsushi Fujimori

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7 Citations (Scopus)

Abstract

The photoelectron spectra of the CuxNi1-x and AgxPd1-x alloy systems have been measured by means of a resonant photoemission technique to study the alloying effect on the valence band satellite. In the CuxNi1-x alloy system, the resonance intensity, which is defined as the area of the structure of the CIS of the 6 eV satellite normalized by Ni concentration, is found to increase with increasing Cu concentration. However, the difference intensity, which is defined as the difference between on- and off- resonance spectra normalized by Ni concentration, decreases with increasing Cu concentration. It is concluded that a valence electron transfer from the Ni 3d state to the Cu 4s state occurs upon alloying. This finding does not agree with the rigid band model, which explains the decrease in magnetic moment in terms of alloying. It.is suggested that the in the Ni or Pd atomic site is a resonant state mixed with the neighboring valence hole state in the Cu or Ag atomic site.

Original languageEnglish
Pages (from-to)2160-2166
Number of pages7
Journaljournal of the physical society of japan
Volume58
Issue number6
DOIs
Publication statusPublished - 1989 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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