Magnetic Correlation near Impurities in YBa_2(Cu_<1-x>M_x)_4O_8 (M=Ni, Zn) via Cu Nuclear Spin-Lattice Relaxation : Condensed Matter: Electronic Properties, etc.

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概要

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• The difference in the lightly doped impurity effects on the local magnetic correlation between magnetic Ni and nonmagnetic Zn impurities has been studied by the planar ^<63>Cu nuclear spin-lattice relaxation for high-T. superconductor YBa_2(Cu_<1-x>-*M.)_4O_8 (M = Ni, Zn) with the Cu nuclear quadrupole resonance (NQR) spin-echo technique. In the light of an impurity-induced nuclear spin-lattice relaxation theory, we conclude that the wipeout region around impurities at T = 4.2 K is more extended for Zn than for Ni. It was found that the magnetically enhanced region is wider around Zn than around Ni in the superconducting state.

• 社団法人日本物理学会の論文
• 2001-03-15

著者

• Watanabe Noboru

  National Laboratory For High Energy Physics

• Itoh Y

  Shizuoka Univ. Shizuoka

• Itoh Y

  Superconductivity Research Laboratory International Superconductivity Technology Center

• Machi Takao

  Superconductivity Research Laboratory International Superconductivity Technology Center

• WATANABE Narumi

  Graduate School of Science, Osaka University

• Watanabe N

  Graduate School Of Science Osaka University

• KOSHIZUKA Naoki

  Superconductivity Research Laboratory, ISTEC

• Koshizuka N

  Istec Tokyo Jpn

• Koshizuka N

  International Superconductivity Technol. Center Tokyo Jpn

• Koshizuka N

  Electrotechnical Lab. Ibaraki Pref.

• Watanabe N

  Superconductivity Res. Lab. Tokyo

• Watanabe Nobuaki

  Superconductivity Research Laboratory International Superconductivity Technology Center

• MACHI Takato

  Superconductivity Research Laboratory,International Superconductivity Technology Center

• Machi Takato

  Superconductivity Research Laboratory International Superconductivity Technology Center

• ITOH Yutaka

  Superconductivity Research Laboratory, International Superconductivity Technology Center

• Koshizuka Naoki

  Superconductivity Research Laboratory International Superconductivity And Technology Center (istec)

• Itoh Yuichi

  Faculty Of Human Cultures Fukuyama University

• Itoh Yutaka

  Department of Material Science, Faculty of Science, Kochi University

• Watanabe Nobuaki

  Graduate School of Science, Osaka University

• Machi Takato

  Superconductivity Research Laboratory, International Superconductivity Technology Centre

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