Thermal and electrical transport in single crystalline MgB_2

A. V. Sologubenko; J. Jun; S. M. Kazakov; J. Karpinski; H. R. Ott

Thermal and electrical transport in single crystalline MgB_2

Superconductivity 2007-05-23 v1

Authors: A. V. Sologubenko , J. Jun , S. M. Kazakov , J. Karpinski , H. R. Ott

Abstract

We present the results of measurements of the thermal and electrical conductivity in the basal plane of single-crystalline MgB_2 between 2 and 300 K. The analysis of the temperature dependence of the thermal conductivity gives supporting evidence for two different gaps on different sheets of the Fermi surface in the superconducting state. The zero-temperature values of the two gaps are D_1 (0) = 5.3 meV and D_2 (0) = 1.65 meV.

Keywords

MgB_2 thermal conductivity electrical conductivity superconducting gap Fermi surface

Cite

@article{arxiv.cond-mat/0111273,
  title  = {Thermal and electrical transport in single crystalline MgB_2},
  author = {A. V. Sologubenko and J. Jun and S. M. Kazakov and J. Karpinski and H. R. Ott},
  journal= {arXiv preprint arXiv:cond-mat/0111273},
  year   = {2007}
}

Comments

4 pages, 3 figures

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