Observation of Magnetic Ordering in La_<2-x>Sr_xCuO_4 around x=0.115 : La-NQR Study
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概要
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The nuclear quadrupole resonance (NQR) study of ^<139>La in La_<2-x>Sr_xCuO_4 was systematically carried out in the Sr-content range from 0.085 to 0.15 at 1.4 and 4.2 K in zero field. The linewidth of the ^<139>La NQR spectrum for the (±1/2→±3/2) transition was found to increase especially at x=0.115, associated with the occurrence of magnetic ordering. This is hence considered to be responsible for the decrease of the superconducting transition temperature around x=0.115. Since the spectrum does not broaden with for the (±5/2→±7/2) transition down to 1.4 K, the ordered Cumoments are considered to exist in the Cu-O_2 sheets.
- 社団法人日本物理学会の論文
- 1994-06-15
著者
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ISHIDA Kenji
Department of Physics, Graduate School of Science, Kyoto University
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KITAOKA Yoshio
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit
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Asayama Kunisuke
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Asayama Kunisuke
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Asayama Kunisuke
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kohori Y
Chiba Univ. Chiba
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Karaki Y
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kitaoka Yoshio
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Ohsugi Shigeki
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Ohsugi S
Sci. Univ. Tokyo Chiba
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Ohsugi Shigeki
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Yamagata Hideki
Faculty Of Science Kochi University
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Yamanaka Hideaki
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Ishida Kenji
Department Of Orthopaedic Surgery Kochi Medical School
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Yamagata H
Department Of Material Science Faculty Of Science Kochi University
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Yamanaka Hideaki
Department Of Food Science & Technology Tokyo University Of Fisheries
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Ishida Kenji
Department Of Chemical Science And Engineering Graduate School Of Engineering Kobe University
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Ohsugi Shigeki
Department Of Cardiology Nagoya University Graduate School Of Medicine
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Asayama Kunisuke
Department of Material Physics, Faculty of Engineering Science, Osaka University:Presently Professor Emeritus of Osaka University
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Ishida Kenji
Department of Applied Chemistry, Ibaraki University
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