The Effect of Zn-Doping on the Magnetic Field Induced Dimensional Crossover in YBa_2Cu_4O_8 : Condensed Matter: Electronic Properties, etc.

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概要

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• In YBa_2Cu_4O_8 (Y124), the c-axis resistivity ρ_c(T) shows a drastic change from metallic to insulating behavior above a crossover magnetic field B_<cr> (B‖a), namely a magnetic field induced dimensional cross over. A simple picture for quasi-1-dimensional (quasi-1D) band transport along the CuO chains, originally proposed by Gorkov and Lebed, was suggested as the mechanism for this novel phenomenon. To further test the proposed picture, similar measurements on Y 124 crystals doped with Zn were performed. Zn-doping is found to alter significantly ρ_c(T) at low temperatures but has little effect on the magnetic field induced dimensional crossover. These results are in good agreement with the predictions of the quasi-1D chain model and appear to confirm the critical role of the Cu O chains in metallizing the c-axis in Y124.

• 社団法人日本物理学会の論文
• 2000-01-15

著者

• 三浦 登

  理研

• Hussey N

  Univ. Bristol Bristol Gbr

• ADACHI Seiji

  Superconductivity Research Laboratory, International Superconductivity Technology Center

• Adachi Seiji

  Central Research Laboratory Matsushita Electric Industrial Co. Ltd.

• Adachi Seiji

  Central Research Laboratories Matsushita Electric Industrial Co. Ltd.

• MIURA Noboru

  Institute for Solid State Physics,University of Tokyo

• 三浦 登

  東京大学物性研究所

• TAKAGI Hidenori

  institute for Solid State Physics,University of Tokyo

• Nohara Minoru

  Institute for Solid State physics,University of Tokyo

• Miura Noboru

  Instilute For Solid State Physics University Of Tokyo

• Nohara M

  Department Of Advanced Materials Science University Of Tokyo

• Nohara Minoru

  Graduate School Of Frontier Sciences University Of Tokyo

• Nohara Minoru

  Institute For Solid State Physics University Of Tokyo

• Adachi Seiji

  Superconductivity Research Laboratory International Superconductivity Technology Center

• Sakai Fumiko

  Institute For Solid State Physics The University Of Tokyo

• Sakai F

  Institute For Solid State Physics The University Of Tokyo

• WAKU Kiminori

  Institute for Solid State Physics, University of Tokyo

• HUSSEY NigelE.

  Department of Physics, Loughborough University

• SAKAl Fumiko

  Institute for Solid State Physics, University of Tokyo

• NAKAGAWA Hiroyuki

  Institute for Solid State Physics, University of Tokyo

• Sakal Fumiko

  Institute For Solid State Physics University Of Tokyo

• Waku Kiminori

  Institute For Solid State Physics University Of Tokyo

• Hussey Nigele.

  Department Of Physics Loughborough University

• Takagi Hidenori

  Institute For Solid State Physics University Of Tokyo:department Of Advanced Materials Science Unive

• Takagi Hidenori

  Institute For Solid State Physics University Of Tokyo

• Nakagawa H

  Osaka Prefecture Univ. Osaka

• Nakagawa Hiroyuki

  Institute For Solid State Physics University Of Tokyo

• Hussey Nigel

  Department of Physics, Loughborough University

• Adachi Seiji

  Superconductivity Research Laboratory/International Superconductivity Technology Center

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