Journal
PHYSICA B-CONDENSED MATTER
Volume 403, Issue 5-9, Pages 1065-1067Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2007.10.089
Keywords
non-centrosymmetric superconductors; low-carrier density; LaBiPt
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The semimetallic half-Heusler alloy LaBiPt crystallizes in the non-centrosymmetric space group F (4) over bar 3m. We discovered superconductivity in this material below T-c approximate to 0.9K as evidenced by resistivity and magnetization measurements. The occurrence of superconductivity in LaBiPt is remarkable in view of its extremely low charge carrier concentration of n = 6 x 1018 cm(-3). The charge carrier concentration is 1-2 orders of magnitude lower than in the classical low-carrier-density superconductors GeTe, SnTe and n-doped SrTiO3. (c) 2007 Elsevier B.V. All rights reserved.
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