Abstract
The semimetallic half-Heusler alloy LaBiPt crystallizes in the non-centrosymmetric space group F4¯3m. We discovered superconductivity in this material below Tc≈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=6×1018cm-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.
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