Analysis for Softening of Elastic Constant and Specific Heat in CePd_2Al_3 : Quadrupole Response Induced by the Kondo Effect
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概要
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We analyze the temperature dependence of the specific heat and the qtmadrupole susceptibilityfor CePd3Al3, in which the Kondo effect coexists with the crystalline electric field (CEF) ex-citation. The calculation is carried out systematically by using the numerical renorrnalizationgroup method. The ratio A/T$ (,4: the CEF excitation energy, Tf: the Kondo temperature forthe fictitious system of A : 0) is estirnated to be about 1.2 from the data of magnetic specificheat. The observed softening of C33 mode at very Jew temperature, which is expected to vanishin hexagonal compound such as CePdzAl3 from the conventional CEF theory, is explained byconsidering the Kondo effect.
- 社団法人日本物理学会の論文
- 1996-08-15
著者
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Shimizu Yukihiro
Department Of Applied Physics Tohoku University
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Sakai Osamu
Department Of Electronic Science And Engineering Kyoto University
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Sakai Osamu
Department Of Cardiovascular Surgery Kyoto Prefectural University Of Medicine
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