Electric-field-induced superconductivity at 9.4 K in a layered transition metal disulphide MoS2
Abstract
Electro-static carrier doping was attempted in a layered transition metal disulphide MoS2 by constructing an electric double-layer transistor with an ionic liquid. With the application of gate voltage VG higher than 3 V, a metallic behavior was observed in the MoS2 channel. We found an onset of electric field-induced superconductivity in the field induced metallic phase. A maximum TC ∼ 9.4 K was observed, which could be higher than those in chemically doped bulk materials.
- Publication:
-
Applied Physics Letters
- Pub Date:
- July 2012
- DOI:
- 10.1063/1.4740268
- Bibcode:
- 2012ApPhL.101d2603T
- Keywords:
-
- conduction bands;
- electrostatics;
- molybdenum compounds;
- superconducting semiconductors;
- superconductivity;
- 74.20.Pq;
- 74.70.-b;
- Superconducting materials