Quasi-One-Dimensional Spin Dynamics in d-Electron Heavy-Fermion Metal Y1-xScxMn2
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概要
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Slow spin fluctuations (\nu < 10^{12} s-1) observed by the muon spin relaxation technique in Y1-xScxMn2 exhibits a power law dependence on temperature (\nu\propto T^{\alpha}), where the power converges asymptotically to unity (\alpha\rightarrow 1) as the system moves away from spin-glass instability with increasing Sc content x. This linear T dependence, which is common to that observed in LiV2O4, is in line with the prediction of the ``intersecting Hubbard chains'' model for a metallic pyrochlore lattice, suggesting that the geometrical constraints to t_{2g} bands specific to the pyrochlore structure serve as a basis of the d-electron heavy-fermion state.
- 2011-06-15
著者
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TABATA Yoshikazu
Department of Earth and Space Science, Graduate School of Science, Osaka University
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Koda Akihiro
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Miyazaki Masanori
Department Of Gastroenterology And Hepatology Osaka University Graduate School Of Medicine
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Kadono Ryosuke
Department Of Materials Structure Science The Graduate University For Advanced Studies
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Kojima Kenji
Department Of Electrical Engineering Faculty Of Engineering Kanagawa University
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Hiraishi Masatoshi
Department Of Materials Structure Science School Of High Energy Accelerator Science The Graduate Uni
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Yamazaki Teruo
Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
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Nakamura Hiroyuki
Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
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Nakamura Hiroyuki
Department of Advanced Materials, University of Tokyo, Kashiwa, Chiba 277-8561
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Tabata Yoshikazu
Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
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Masuda Tetsuya
Muon Science Laboratory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
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Hiraishi Masatoshi
Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan
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Kadono Ryosuke
Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan
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Miyazaki Masanori
Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan
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Koda Akihiro
Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan
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Yamazaki Teruo
Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
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Kojima Kenji
Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan
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Kojima Kenji
Department of Chemistry, Faculty of Sciences, Gakushuin University
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