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2010 | 118 | 5 | 1042-1044
Article title

Strong-Coupling Features in YB_6 and ZrB_{12} Studied by Point-Contact Spectroscopy

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EN
Abstracts
EN
Point-contact spectroscopy studies of the superconducting energy gap and the electron-phonon coupling mechanism are performed on the boron rich YB_6 and ZrB_{12} single crystals. The obtained values of the superconducting energy gaps suggest the strong coupling with 2 Δ/k_{B}T_{c}≈ 4.2 for YB_6 and 2 Δ/k_{B}T_{c}≈ 4.15 for ZrB_{12}. We have observed the dominant soft phonon modes mediating superconductivity in the both samples at energy ≈ 8 meV for YB_6 and ≈ 11 meV in ZrB_{12}, respectively.
Keywords
EN
Contributors
author
  • Centre of Low Temperature Physics, IEP Slovak Academy of Sciences & P.J. Šafárik University, Watsonova 47, SK-04353 Košice, Slovakia
author
  • Centre of Low Temperature Physics, IEP Slovak Academy of Sciences & P.J. Šafárik University, Watsonova 47, SK-04353 Košice, Slovakia
author
  • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
author
  • Centre of Low Temperature Physics, IEP Slovak Academy of Sciences & P.J. Šafárik University, Watsonova 47, SK-04353 Košice, Slovakia
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5135kz
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