Low-Temperature Static Magnetic Susceptibility of Al_<0.3>Ga_<0.7>As with DX Centers
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概要
- 論文の詳細を見る
We have measured the static magnetic susceptibility of Al_<0.3>Ga_<0.7>As doped with 1×10^<18> cm^<-3> Te from 20 mK to 1 K in order to study the electron ground state of the DX center. We observed Curie-law temperature dependence of the susceptibility which should come from some paramagnetic centers. The concentration of the paramagnetic center assuming g=2 and spin 1/2 is much lower than that of the DX center. The result indicates that the ground state of the DX center has no spin, thus supporting the negative-U picture of the ground state of the DX center.
- 社団法人応用物理学会の論文
- 1990-09-20
著者
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Kobayashi Shun-ichi
Department of Physics, Faculty of Science, University of Tokyo
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Katsumoto Shingo
Department Of Physics Faculty Of Science University Of Tokyo
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Yoshida Yasuhiro
Department Of Biomaterials Graduate School Of Medicine Dentistry And Pharmaceutical Sciences Okayama
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Kobayashi Shun-ichi
Department Of Physics Faculty Of Science University Of Tokyo
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Sugiyama K
National Res. Lab. Metrology Ibaraki Jpn
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MATSUNAGA Noriaki
Department of Physics, Faculty of Science, University of Tokyo
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SUGIYAMA Katsuyuki
Department of Physics, Faculty of Science, University of Tokyo
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Matsunaga N
Department Of Physics Faculty Of Science University Of Tokyo
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Sugiyama Katsuyuki
Department Of Fundamental Sciences Faculty Of Integrated Human Studies Kyoto University
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Sugiyama Katsuyuki
Department Of Physics Faculty Of Science University Of Tokyo
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Yoshida Yasuhiro
Department Of Physics Faculty Of Science University Of Tokyo
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Kobayashi Shun-ichi
Department Of Pediatrics Institute Of Health Bioscience The University Of Tokushima Graduate School
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Matsunaga Noriaki
Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
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KOBAYASHI Shun-ichi
Faculty of Engineering Science, Osaka University:(Present address)Department of Physics, University of Tokyo
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KOBAYASHI Shun-ichi
Department of Physics, Osaka University
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Kobayashi Shun-ichi
Department of Functional Machinery and Mechanics, Shinshu University
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