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Magnetoresistivity and upper critical field in superconductor Mo3Sb7

V. H. TRAN1,* , E. BAUER2, A. GALATANU3, Z. BUKOWSKI4

Affiliation

  1. W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50- 950 Wrocław, Poland
  2. Institute of Solid State Physics, Vienna University of Technology, A-1090 Wien, Austria
  3. National Institute of Materials Physics, 77125 Magurele, Romania
  4. Laboratory for Solid State Physics, ETH Zűrich, 8093 Zűrich, Switzerland

Abstract

Magnetotransport data on a single crystal of the superconducting Mo3Sb7 are reported for temperatures down to 0.4 K and in magnetic fields up to 12 T. The magnetoresistance data are analyzed in terms of the Ginzburg-Landau fluctuation theory. From the experimental data the upper critical field Hc2(0) and Ginzburg-Landau coherent length ξ(0) are determined to be ∼ 2.3 T and 12 nm, respectively. The Hc2(0) value agrees with that inferred from the Werthamer, Helfand, Hohenberg, and Maki theories for conventional type-II superconductors..

Keywords

Magnetoresistivity, Superconductor, Mo3Sb7.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

V. H. TRAN, E. BAUER, A. GALATANU, Z. BUKOWSKI, Magnetoresistivity and upper critical field in superconductor Mo3Sb7, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1630-1632 (2008)