Growth and superconducting properties of Cd-doped La(O,F)BiS2 single crystals

摘要

Cd-doped La(O,F)BiS2 single crystals were grown using a CsCl/KCl flux. Thegrown crystals have a plate-like shape with ~1-2 mm square size in awell-developed ab-plane. The Cd doping in the crystals was successfullycharacterized by single crystal X-ray diffraction and electron probemicroanalysis techniques. The superconductivity of La(O,F)BiS2 was graduallysuppressed with Cd doping. The superconducting transition temperature with zeroresistivity of La(O0.54F0.46)(Bi0.92Cd0.08)S2 was 2.3 K. The Cd doping does notchange the superconducting anisotropy so much, albeit the considerablesuppression of Tc.