Antiferromagnetic Resonance in the Heavy Fermion State of URu_2Si_2
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概要
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Electron spin resonance of URu_2Si_2 single crystals is studied under a high magnetic field in the 50 GHz region and a broad and weak resonance line is found in the region where heavy Fermions and weak antiferromagnetism coexist. The resonance line is identified to the antiferromagnetic resonance mode. A striking fact is that the effective g-value is 0.15 which is very different from the uranium or conduction electron g-values. This result is explained by introducing a coupled moment of residual 5f-and Kondo-screening electrons on the uranium atom. About 6.5% of 5f-electrons screened with 18% of conduction electrons form weak antiferromagnetic moments in the heavy Fermion sea.
- 社団法人日本物理学会の論文
- 1993-05-15
著者
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DATE Muneyuki
Department of Physics, Faculty of Science, Osaka University
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KINDO Koichi
Department of Physics,Faculty of Science,Osaka University
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Kindo Koichi
Department Of Physics Faculty Of Science Osaka University
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Date Muneyuki
Department Of Physics Faculity Of Science Osaka University
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