Far-Infrared Absorption by Small Particles of YBa_2Cu_3O_<6.74>

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概要

• 論文の詳細を見る

• The presence of the superconducting energy gap, 2A, in YB3[2CU.06,. has been ob-served directly at 45 f 5 cm ' and at 1.6 K by far-infrared absorption measurementsin small particles embedded randomly in a polyethylene film. Tl?is result indicates thatthe gap has the minimum of 271 ,.,. : 0.7 kT., and thus the gap is: finite along any direclion in the crystal. Transverse effective charges associated with polar optical phononsat l 44, 280, and 3 I 5 cm ' increase by a factor of 4 - 5 upon a decrease in the tempera-lure from 295 K to 1.6 K, suggesting the presence c>f an anomalous electron-phononcoupling in this material.

• 社団法人日本物理学会の論文
• 1987-11-15

著者

• Kuroda Noritaka

  Institute for Materials Research, Tohoku University

• Nishina Yuichiro

  Institute for Materials Research, Tohoku University

• Kuroda Noritaka

  Institute For Materials Research Tohoku University

• CHIDA Fumio

  Institute for Materials Research,Tohoku University

• SASAKI Yoshiro

  Institute for Materials Research,Tohoku University

• KIKUCHI Masae

  Institute for Materials Research,Tohoku University

• TOKIWA Ayako

  Institute for Materials Research,Tohoku University

• SYONO Yasuhiko

  Institute for Materials Research,Tohoku University

• Kikuchi Masae

  Institute For Material Research Tohoku University

• Nishina Yuichiro

  Institute For Materials Research (imr) Tohoku University

• Syono Y

  Tohoku Univ. Sendai Jpn

• Someya Yoshiko

  Institute For Material Research Tohoku University

• Syono Yasuhiko

  Institute For Materials Research Tohoku University

• Chida Fumio

  Institute For Materials Research Tohoku University

• Sasaki Yoshiro

  Institute For Materials Research Tohoku University

• Tokiwa A

  Tohoku Univ. Sendai

• Tokiwa Ayako

  Institute For Materials Research Tohoku University

• Moroishi K

  Hoya Corp. Tokyo Jpn

• Kikuchi Masae

  Institute for Iron, Steel and Other Metals, Tohoku University

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