Single-Crystal Growth and Thermal Conductivity of the Four-Leg Spin-Ladder System La_2Cu_2O_5 (Condensed Matter: Structure, Mechanical and Thermal Properties)

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概要

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• We have succeeded in growing large-size single-crystals of the four-leg spin-ladder system La_2Cu_2O_5 by the traveling-solvent floating-zone method, and also investigated the thermal conductivity. The thermal conductivity along the leg of the ladder, K_b, has been found to be much larger than that perpendicular to the ladder plane, K_a. The temperature dependence of K_a, exhibits a peak at 22 K and a shoulder at 12K. The peak is a little enhanced by the application of a magnetic field of 14 T. The large value of K_b, is explained as being due to the large contribution of magnons to the thermal conductivity.

• 社団法人日本物理学会の論文
• 2003-10-15

著者

• Kobayashi Norio

  Institute For Materials Research Tohoku University

• KOIKE Yoji

  Department of Applied Physics, Graduate School of Engineering, Tohoku University

• 小島 憲道

  東大総合文化

• 黒田 規敬

  熊本大学大学院

• 小林 長夫

  東北大学大学院理学研究科

• 佐藤 知矢

  Department Of Physics Faculty Of Science Shinshu University

• NOJI Takashi

  Department of Applied Physics, Tohoku University

• KUDO Kazutaka

  Institute for Materials Research, Tohoku University

• Kobayashi N

  Institute For Materials Research Tohoku University

• Koike Yoji

  Department Applied Physics Graduate School Of Engineering Tohoku University

• Noji Takashi

  Department Of Applied Physics Faculty Of Engineering Tohoku University

• Kudo K

  Institute For Materials Research Tohoku University

• Kudo Kazutaka

  Department Of Applied Physics Graduate School Of Engineering Tohoku University

• NISHIZAKI Terukazu

  Institute for Materials Research, Tohoku University

• Kuroda Noritaka

  Discovery Research Laboratories V Discovery Research Division Takeda Chemical Industries Ltd.

• Noto K

  Institute For Materials Research Tohoku University

• Kojima N

  Graduate School Of Arts And Sciences University Of Tokyo

• Kobayashi N

  Tohoku Univ. Sendai Jpn

• Kobayashi N

  Institute For Materials Research Tohoku University Katahira

• KOBAYASHI Norio

  The Research Institute for Iron,Steel and Other Metals,Tohoku University

• Nishizaki Terukazu

  Institute For Materials Research Tohoku University

• Kuroda N

  Nec Corp. Ibaraki Jpn

• Nojima T

  Institute For Materials Research Tohoku University

• Kobayashi Norio

  Institute For Materials Recearch Tohoku University

• Kobayashi Norio

  Faculty Of Engineering Iwate University

• 小島 憲道

  東大院総合

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