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

• TABATA Yoshikazu

  Department of Earth and Space Science, Graduate School of Science, Osaka University

• Koda Akihiro

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• Miyazaki Masanori

  Department Of Gastroenterology And Hepatology Osaka University Graduate School Of Medicine

• Kadono Ryosuke

  Department Of Materials Structure Science The Graduate University For Advanced Studies

• Kojima Kenji

  Department Of Electrical Engineering Faculty Of Engineering Kanagawa University

• Hiraishi Masatoshi

  Department Of Materials Structure Science School Of High Energy Accelerator Science The Graduate Uni

• Yamazaki Teruo

  Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan

• Nakamura Hiroyuki

  Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan

• Nakamura Hiroyuki

  Department of Advanced Materials, University of Tokyo, Kashiwa, Chiba 277-8561

• Tabata Yoshikazu

  Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan

• 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

• Hiraishi Masatoshi

  Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan

• Kadono Ryosuke

  Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan

• Miyazaki Masanori

  Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan

• Koda Akihiro

  Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan

• Yamazaki Teruo

  Department of Material Science and Engineering, Kyoto University, Kyoto 606-8501, Japan

• Kojima Kenji

  Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801, Japan

• Kojima Kenji

  Department of Chemistry, Faculty of Sciences, Gakushuin University

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