Ultrasonic Studies of a Single Crystalline La_<1.85>Sr_<0.15>CuO_4 in High Magnetic Fields(Transport and Fermiology)
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概要
- 論文の詳細を見る
Temperature dependence of the sound velocity of a single crystalline La_<1.85>Sr_<0.15>CuO_4 has been measured in high magnetic fields. An increase of the sound velocity due to the flux line lattice (FLL) pinning is observed at a temperature below the superconducting transition temperature T_C. Anisotropic activation energies to depin flux lines are evaluated separately from measurements under various settings of the directions of wave vector k, polarization vector u and magnetic fields H using the analysis based oh the thermally assisted flux flow model. Besides the FLL elasticity, anomalous temperature dependence of elastic constants of c_<33> and (c_<11>-c_<12>)/2 (softening at low temperatures and hardening at lower temperatures below 10K) is observed in high magnetic fields.
- 東北大学の論文
- 1993-06-30
著者
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Tanaka I
Optoelectronics Technology Research Lab.(otl) Ibaraki
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Fukase Tetsuo
Institute For Materials Research Tohoku University
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Fukase Tetsuro
Institute For Materials Research Tohoku University
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Fukase Tetsuo
Institute For Materials Reserch Tohoku University
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Kojima H
Hitachi Ltd. Tokyo Jpn
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Kojima Hironao
Institute Of Inorganic Synthesis Faculty Of Engineering Yamanashi University
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Tanaka Isao
Institute of Inorganic Synthesis, Faculty of Engineering, Yamanashi University
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Funase Tetsuo
Institute For Material Research Tohoku University
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HANAGURI Tetsuo
Institute for Materials Research,Tohoku University
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Fukase T
Institute For Materials Research Tohoku University
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Tanaka I
Department Of Materials Science And Engineering Kyoto University
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Fukase Tetsuo
Institute For Material Research Tohoku University
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Tanaka I
Hokkaido Univ. Sapporo Jpn
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Hanaguri T
Department Of Advanced Materials Science University Of Tokyo:sorst Japan Science And Technology Corp
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Hanaguri Tetsuo
Department Of Basic Science The University Of Tokyo
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Tanaka Isao
Institute Of Inorganic Synthesis Faculty Of Engineering Yamanashi University
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Fukase Tetsuo
Institute for Materials Research, Tohoku University
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Hanaguri Tetsuo
Department of Advanced Materials Science, University of Tokyo:SORST, Japan Science and Technology Corporation
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