Anisotropy of the superconducting gap of the borocarbide superconductor YNi2B2C with ultrasonk attenuation

Tadataka Watanabe, Minoru Nohara, Tetsuo Hanaguri, Hidenori Takagi

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Abstract

The measurement of ultrasonic attenuation α of the highly anisotropic s-wave superconductor YNI2B2C was discussed. The measurement was done for all the symmetrically independent elastic modes to explore the location of the zero superconducting gap on the Fermi surface. A pronounced anisotropy of the temperature dependent attenuation in superconducting state was found during the experiment. It was also found that the anisotropy can be interpreted consistently as the presence of zero superconducting gap.

Original languageEnglish
Article number160603
Pages (from-to)147002-1-147002-4
JournalPhysical Review Letters
Volume92
Issue number14
DOIs
Publication statusPublished - Apr 9 2004
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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