Author/Authors :
Zhu، نويسنده , , X.D. and Sun، نويسنده , , Y.P. and Zhang، نويسنده , , S.B. and Lei، نويسنده , , H.C. and Li، نويسنده , , L.J. and Zhu، نويسنده , , X.B. and Yang، نويسنده , , Z.R. and Song، نويسنده , , W.H. and Dai، نويسنده , , J.M.، نويسنده ,
Abstract :
Superconductivity was discovered in a Ni0.05TaS2 single crystal. A Ni0.05TaS2 single crystal was successfully grown via the NaCl/KCl flux method. The obtained lattice constant c of Ni0.05TaS2 is 1.1999 nm, which is significantly smaller than that of 2H–TaS2 (1.208 nm). Electrical resistivity and magnetization measurements reveal that the superconductivity transition temperature of Ni0.05TaS2 is enhanced from 0.8 K (2H–TaS2) to 3.9 K. The charge-density-wave transition of the matrix compound 2H–TaS2 is suppressed in Ni0.05TaS2. The success of Ni0.05TaS2 single crystal growth via a NaCl/KCl flux demonstrates that NaCl/KCl flux method will be a feasible method for single crystal growth of the layered transition metal dichalcogenides.
Keywords :
B2. Superconducting materials , B1. Sulfides , A2. Single crystal growth , A2. Flux method
