Magnetoabsorption in Single-Crystal HgCr_2Se_4
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概要
- 論文の詳細を見る
The optical absorption spectra of HgCr_2Se_4 single crystals in the intrinsic transition region were measured as a function of magnetic field at a number of fixed temperatures. The absorption edge, 0.80 eV, at room temperature shifted to 0.27 eV at liquid helium temperature. The temperature dependence of the absorption edge was nonlinear and remarkable around the Curie temperature. The absorption edge also shifts to the lower energy side with the increasing magnetic field. The field dependence of the edge shift in weaker magnetic field was larger at the Curie temperature than it in the higher temperature region. The temperature and magnetic field dependence of the absorption edge was compared to a calculated spin correlation function in spinels with the nearest neighbour exchange interaction between localized Cr^<+3> ions. Other kind of exchange interaction would be required to explain the temperature dependence of the absorption edge.
- 社団法人日本物理学会の論文
- 1973-01-05
著者
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ONARI Seinosuke
Institute of Applied Physics, The University of Tsukuba
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ARAI Toshihiro
Institute of Applied Physics, The University of Tsukuba
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Satoh Takehiko
Electrotechnical Laboratory
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TSUSHIMA Tachiro
Electrotechnical Laboratory
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WAKAKI Moriaki
Institute for Optics, Tokyo Kyoiku University
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KUDO Keiei
Institute for Optics, Tokyo Kyoiku University
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Kudo Keiei
Institute For Optical Research Tokyo Kyoiku University
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Kudo Keiei
Institute For Optical Research Tokyo University Of Education
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Kudo Keiei
Institte For Optical Research Kyoiku University
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Arai Toshihiro
Institute For Optical Research Tokyo Kyoiku University
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Arai Toshihiro
Institute For Optical Research Kyoiku University
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Arai Toshihiro
Institute For Optical Research Tokyo University Of Education
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Wakaki Moriaki
Institute For Optics Tokyo Kyoiku University
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Onari Seinosuke
Institute For Optical Research Tokyo University Of Education
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Arai Toshihiro
Institte For Optical Research Kyoiku University
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