Influence of Impurity-Scattering on Tunneling Conductance in d-Wave Superconductors with Broken Time Reversal Symmetry (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Effects of impurity scattering on tunneling conductance in dirty normal-metal/insulator/superconductor junctions are studied based on the Kubo formula and the recursive Green function method. The zero-bias conductance peak (ZBCP) is a consequence of the unconventional pairing symmetry in superconductors. The impurity scattering in normal metals suppresses the amplitude of the ZBCP. The degree of the suppression agrees well with results of the quasiclassical Green function theory. When superconductors have d + is-wave pairing symmetry, the time-reversal symmetry is broken in superconductors and the ZBCP splits into two peaks. The random impurity scattering reduces the height of the two splitting peaks. The position of the splitting peaks, however, almost remains unchanged even in the presence of the strong impurity scattering. Thus the two splitting peaks never merge into a single ZBCP.

• 社団法人日本物理学会の論文
• 2003-07-15

著者

• Kashiwaya S

  Nanoelectronics Research Institute (neri) National Institute Of Advanced Industrial Science And Tech

• Asano Y

  Hokkaido Univ. Sapporo Jpn

• Inoue Jun-ichiro

  Department Of Applied Physics Nagoya University

• Asano Yuzo

  Institute Of Applied Physics University Of Tsukuba

• Inoue J

  Nagoya Univ. Nagoya

• ASANO Yasuhiro

  Department of Applied Physics,Nagoya University

• ASANO Yoshihiro

  NTT Electrical communications Laboratories

• Koikegami S

  Jsps Tokyo

• Asano Y

  Fukui Univ. Technol. Fukui

• Asano Yasuhiro

  Department Of Applied Physics And Chemistry Fukui University Of Technology

• TANAKA Yukio

  Department of Applied Physics, Nagoya University

• Inoue J

  Department Of Basic Science University Of Tokyo:core Research For Evolutional Science And Technology

• Asano T

  Hokkaido Univ. Sapporo

• TANUMA Yasunari

  Institute of Physics, Kanagawa University

• KASHIWAYA Satoshi

  National Institute of Advanced Industrial Science and Technology

• KITAURA Naoki

  Department of Applied Physics, Nagoya University

• ITOH Hiroyoshi

  Department of Quantum Engineering, Nagoya University

• ITOH Hiroto

  Department of Physics, Chuo University

• Itoh H

  Department Of Physics Chuo University

• Kitaura Naoki

  Department Of Applied Physics Nagoya University

• Itoh H

  Nagoya Univ. Nagoya‐shi

• Itoh Hiroyoshi

  Department Of Applied Physics Nagoya University

• Kawabata Shiro

  Nanotechnology Research Institute Aist

• Inoue Junichiro

  Department Of Applied Physics Faculty Of Engineering Nagoya University

• Tanaka Yukio

  Department Of Applied Physics Nagoya University

• Inoue Junichiro

  Department of Applied Physics, Nagoya University

• Inoue Jun-ichiro

  Department of Applied Physics, Nagoya University

• INOUE Jun-Ichiro

  Department of Applies Physics, Nagoya University

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