Kondo State of CeAl_2 under High Pressure
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概要
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The electrical resistivity of single-crystalline CeAl<SUB>2</SUB> has been measured under high pressure up to 2 GPa in the temperature range 2-280 K. It is found that the magnetic contribution to the resistivity of CeAl<SUB>2</SUB> has two peaks at T<SUB>1</SUB> (=5 K) and T<SUB>m</SUB> (=70 K) and these temperatures decrease with increasing pressure. The behavior of T<SUB>m</SUB> at high pressure is attributed to the pressure dependence of the Kondo temperature and the splitting energy of 4f levels by the crystalline electric field. The Kondo state of CeAl<SUB>2</SUB> under high pressure is briefly discussed on the basis of thermodynamics.
- 日本高圧力学会の論文
著者
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OOMI G.
Department of Mechanical Engineering and Materials Science, Kumamoto University
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ONUKI Y.
Department of Physics, Graduate School of Science, Osaka University
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Andoh T.
Department Of Mechanical Engineering And Materials Science Kumamoto University
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SAWAMURA T.
Department of Physics, Kumamoto University
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Sawamura T.
Department Of Physics Kumamoto University
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Oomi G.
Department of Mechanical Engineering and Materials Science, Faculty of Engineering, Kumamoto University
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