Photoemission and core-level magnetic circular dichroism studies of diluted magnetic semiconductors

A. Fujimori*, J. Okabayashi, Y. Takeda, T. Mizokawa, J. Okamoto, K. Mamiya, Y. Saitoh, Y. Muramatsu, M. Oshima, S. Ohya, M. Tanaka


研究成果: Article査読

5 被引用数 (Scopus)


An overview is given on the photoemission studies of the electronic structure of diluted magnetic semiconductors (DMS's), in particular of the prototypical ferromagnetic DMS Ga1-xMnxAs. Configuration-interaction cluster-model analyses of the photoemission data allow us to estimate the p-d exchange coupling constant and hence to predict how to increase the Curie temperature in new materials. Spectra near the Fermi level combined with the transport and optical properties suggest a highly incoherent metallic state for the ferromagnetic metallic phase. It is shown that new insight into the chemically and magnetically inhomogeneous states of DMS's can be gained by the temperature and magnetic field dependence of core-level magnetic circular dichroism signals.

ジャーナルJournal of Electron Spectroscopy and Related Phenomena
出版ステータスPublished - 2005 6月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 放射線
  • 原子分子物理学および光学
  • 凝縮系物理学
  • 分光学
  • 物理化学および理論化学


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