Superconductivity-Induced Anomalies in c-Axis Polarized Phonon Modes of YBa_2 Cu_3O_7 Studied by Neutron Inelastic Scattering
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概要
- 論文の詳細を見る
Superconductivity-induced phonon anomalies have been studied by inelastic neutron scattering for c-axis polarized modes in a single crystal of YBa_2 Cu_3O_7. A mode with B_<2u> symmetry, which has out-of-phase motions of crystallographically distinct O(2) and O(3) atoms within a CuO_2 plane, apparently exhibits a frequency decrease and a narrowing of the profile width with onset of the superconductivity, while a mode which has in-phase motions of these oxygens with respect to Cu atoms within the CuO_2 plane does not show an appreciable anomaly. The (x^2-y^2)-like symmetry of the superconducting order parameter is suggested by considering recent theoretical arguments.
- 社団法人日本物理学会の論文
- 1995-05-15
著者
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Nishi Masakazu
Neutron Scattering Laboratory Issp University Of Tokyo
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Nishi M
Neutron Scattering Laboratory Issp University Of Tokyo
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Nishi Masakazu
Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo
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Nishi Masakazu
Institute For Solid State Phrsics University Of Tokyo
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Nishi Masakazu
Issp University Of Tokyo
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KODAMA Katsuaki
Department of Physics,Division of Material Science,Nagoya University
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HARASHINA Hiroshi
Department of Physics,Division of Material Science,Nagoya University
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SATO Masatoshi
Department of Physics,Division of Material Science,Nagoya University
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SHAMOTO Shin-ichi
Department of Applied Physics,Faculty of Engineering,Tohoku University
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Kakurai Kazuhisa
The Institute for Solid State Physics, The University of Tokyo
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Nishi Masakazu
The Institute for Solid State Physics, The University of Tokyo
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Nishi Masakazu
Neutron Scattering Laboratory Issp The University Of Tokyo
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原科 浩
教養部物理学教室
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Kodama Katsuaki
Department Of Physics Division Of Material Science Nagoya University:crest Japan Science And Technol
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Kodama Katsuaki
Department Of Physics Division Of Material Science Nagoya University
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Shamoto Shin-ichi
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Shamoto Shin-ichi
Institute For Molecular Science
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Shamoto Shin-ichi
Department Of Physics Division Of Material Science Nagoya University
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Sato Masatoshi
Department Of Electrical And Electronics Engineering Sophia University
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Sato Masatoshi
Department Of Agro-environmental Science Obihiro University Of Agriculture And Veterinary Medicine
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