Direct observation of a neutral Mn acceptor in Ga 1-xMn xAs by resonant x-ray emission spectroscopy

Y. Ishiwata, T. Takeuchi, R. Eguchi, M. Watanabe, Y. Harada, K. Kanai, A. Chainani, M. Taguchi, S. Shin, M. C. Debnath, I. Souma, Y. Oka, T. Hayashi, Y. Hashimoto, S. Katsumoto, Y. Iye

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6 Citations (Scopus)

Abstract

We have investigated the Mn acceptor state of III-V-based diluted magnetic semiconductor Ga 1-xMn xAs by means of high-resolution resonant x-ray emission spectroscopy, across the Mn L 3 edge. We identify the coexistence of signals related to the neutral impurity A 0 and the ionized acceptor state A - in Ga 1-xMn xAs. This fact suggests that double-exchange-like interaction exists in the ferromagnetic coupling in addition to the free-carrier-induced interaction.

Original languageEnglish
Article number121202
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number12
DOIs
Publication statusPublished - 2005 Mar 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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