Possible Anomalous Doppler Shift Effect in Superconductor Sr_2RuO_4

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概要

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• The effect of Doppler shift is studied in a model for the α-β bands of Sr_2RuO_4 consisting of two hybridized one-dimensional (1D) bands. Assuming a superconducting gap with nodes in a diagonal direction, we examine the oscillation of surface density of states and thermal conductivity under a rotating magnetic field. Upon varying the strength of hybridization, the oscillation of these quantities is found to exhibit 2D to ID crossover. In the crossover regime, which corresponds to the actual Sr_2RuO_4, the thermal conductivity exhibits a two-fold-symmetry oscillation, while a four-fold-symmetry component in the oscillation is barely detectable.

• 社団法人日本物理学会の論文
• 2003-09-15

著者

• Kashiwaya S

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

• KUROKI Kazuhiko

  Department of Applied Physics and Chemistry, The University of Electro-Communications

• Koikegami S

  Jsps Tokyo

• Kuroki K

  Department Of Applied Physics And Chemistry The University Of Electro-communications

• Kuroki K

  Sanyo Electric Co. Osaka Jpn

• Kuroki Kazuhiko

  Department Of Applied Physics And Chemistry The University Of Electro-communications

• Kuroki Kazuhiko

  New Materials Research Center Sanyo Electric Co.

• Kuroki Kazuhiko

  New Materials Research Center Sanyo Electric Co. Ltd.

• TANAKA Yukio

  Department of Applied Physics, Nagoya University

• TANUMA Yasunari

  Institute of Physics, Kanagawa University

• KASHIWAYA Satoshi

  National Institute of Advanced Industrial Science and Technology

• Kawabata Shiro

  Nanotechnology Research Institute Aist

• Tanaka Yukio

  Department Of Applied Physics Nagoya University

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