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Superconductivity and single crystal growth of Ni0.05TaS2 |
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| Authors: | XD Zhu YP Sun SB Zhang HC Lei LJ Li XB Zhu ZR Yang WH Song JM Dai |
| Institution: | 1. Department of Physics College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;2. College of Science Physics Department, Alfaisal University, P.O. Box 50927, Riyadh, 11533, Saudi Arabia;1. Univ. Grenoble Alpes, Inst NEEL, F-38000 Grenoble, France;2. CNRS, Inst NEEL, F-38000 Grenoble, France;3. CEA, INAC-SPSMS, F-38000 Grenoble, France;4. Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences, 04001 Ko?ice, Slovakia |
| 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 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. |
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