論文

査読有り
2006年4月

Fluorescence EXAFS analysis of local structures around Cr atoms in (Ga,Cr)As

PHYSICA B-CONDENSED MATTER
  • H Ofuchi
  • ,
  • M Yamada
  • ,
  • J Okabayashi
  • ,
  • M Mizuguchi
  • ,
  • K Ono
  • ,
  • Y Takeda
  • ,
  • M Oshima
  • ,
  • H Akinaga

376
開始ページ
651
終了ページ
653
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.physb.2005.12.164
出版者・発行元
ELSEVIER SCIENCE BV

In this work, geometric structures for diluted magnetic semiconductor (Ga,Cr)As films grown by low-temperature molecular beam epitaxy were investigated by fluorescence extended X-ray absorption fine structure (EXAFS) measurements. The XAFS analysis has revealed that the majority of Cr atoms in the (Ga,Cr)As film substitute the Ga atoms in the GaAs lattice up to the Cr content x = 0.145. The abrupt change of the Cr-As bond lengths was observed between Cr content x = 0.06 and 0.145, which is due to inhomogeneous distribution of Cr atoms in GaAs matrix. It is expected that the paramagnetic behavior at room temperature in the samples above x = 0.145 is due to the inhomogeneous distribution of the Cr atoms doped in the GaAs matrix. (c) 2006 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.physb.2005.12.164
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000237329500161&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.physb.2005.12.164
  • ISSN : 0921-4526
  • eISSN : 1873-2135
  • Web of Science ID : WOS:000237329500161

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