Ultrasonic Study of La_<0.7>Ca_<0.3>MnO_3
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概要
- 論文の詳細を見る
We have measured the resistivity and the ultrasonic sound velocity of La_<0.7>Ca_<0.3>MnO_3 as functions of temperature and magnetic field. As the temperature is lowered through T_c, where the magnetic phase transition occurs, the sound velocity increases rapidly in the narrow temperature region around T_c. The region where the velocity change occurs shifts up to higher temperatures, as a larger magnetic field is applied. The qualitative behavior of the sound velocity as a function of temperature may be explained in terms of phonon hardening which is due to the combined effect of the double-exchange and the strong electron-phonon interaction.
- 社団法人日本磁気学会の論文
- 1999-01-20
著者
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Park S.
Department Of Pathology Gachon Medical School
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Park S.h.
Department Of Electronic Materials Engineering The University Of Suwon
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Park S.
Department Physics Pohang University Of Science And Technology
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Park S.
Department Of Chemical Engineering Hanyang University
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Jeong Y.
Department of Electrophysics, Kwangwoon University
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Koo T.
Department Physics, Pohang University of Science and Technology
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Min B.
Department Physics, Pohang University of Science and Technology
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Jeong Y.
Department Physics Pohang University Of Science And Technology
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Jeong Y.
Department Of Electronic And Electrical Engineering Pohang University Of Science And Technology
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Min B.I.
Department of Physics, Pohang University of Science and Technology
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Min B.
Department Physics Pohang University Of Science And Technology
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Min B.
Department Of Pohang University Of Science And Thechnology
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Koo T.Y.
Department Physics, Pohang University of Science and Technology
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