Open AccessLocal environment of Mn atoms in IV-VI ferromagnetic semiconductor Ge1−xMnxTe
Author(s) -
Yasuhiro Fukuma,
Hitoshi Sato,
K. Fujimoto,
K. Tsuji,
A. Kimura,
M. Taniguchi,
S. Senba,
A. Tanaka,
Hironori Asada,
T. Koyanagi
Publication year - 2006
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.2165784
Subject(s) - magnetic circular dichroism , ferromagnetism , magnetic semiconductor , semiconductor , chemistry , absorption (acoustics) , exchange interaction , crystallography , cluster (spacecraft) , manganese , analytical chemistry (journal) , condensed matter physics , materials science , physics , spectral line , optoelectronics , organic chemistry , chromatography , astronomy , computer science , composite material , programming language
MnL2,3 x-ray absorption and magnetic circular dichroism study has been performed on IV-VI ferromagnetic semiconductor Ge1−xMnxTe with different Mn compositions x=0.12, 0.32, 0.51, and 1. The absorption and dichroism line shapes are found to be almost independent of the Mn composition, suggesting that the local chemical environment of Mn atoms is the same for Ge1−xMnxTe with the wide range of x. On the basis of the configuration interaction analysis for a MnTe6 cluster, the electronic structure parameters such as the p‐d hybridization and the p‐d exchange constant have been estimated.
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