Vortex States of Tl_2Ba_2CuO_<6+δ> Studied via ^<205>TI NMR at 2 Tesla(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• We report a ^<205>TI NMR study of vortex states in an aligned polycrystalline sample of an overdoped high-T_c superconductor, Tl_2Ba_2CuO_<6+δ> (T_c〜85K), at a magnetic field of 2T along the c axis. We observed an imperfect vortex lattice, so-called Bragg glass, at T=5K, the coexistence of vortex solid and vortex liquid between 10 and 60K, and vortex melting between 65 and 85K. No evidence for local antiferromagnetic ordering at vortex cores was found for our sample.

• 社団法人日本物理学会の論文
• 2005-09-15

著者

• UEDA Yutaka

  Institute for Solid State Physics, University of Tokyo

• YOSHIMURA Kazuyoshi

  Department of Chemistry, Graduate School of Science, Kyoto University

• Ueda Yutaka

  Institute For Solid State Physics University Of Tokyo

• Yoshimura Kazuyoshi

  Department Of Applied Science Tokyo Electrical Engineering College

• ITOH Yutaka

  Department of Chemistry, Graduate School of Science, Kyoto University

• MICHIOKA Chishiro

  Department of Chemistry, Graduate School of Science, Kyoto University

• Itoh Yutaka

  Department Of Chemistry Graduate School Of Science Kyoto University

• Hayashi Akihiko

  Institute for Solid State Physics, University of Tokyo

• Michioka Chishiro

  Department Of Chemistry Graduate School Of Science Kyoto University

• Michioka C

  Department Of Chemistry Graduate School Of Science Kyoto University

• Hayashi A

  Institute For Solid State Physics University Of Tokyo

• Ueda Yutaka

  Institute For Solid State Physic The University Of Tokyo

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