Science· 2012Q1
Superconducting Dome in a Gate-Tuned Band Insulator
- 1,082citations
- Q1SCImago
- 2012year
Short summary
A superconducting dome, previously rare in doped band insulators, was observed in MoS(2) via electrostatic carrier doping, with T(c) peaking at optimal doping in a low-carrier density regime.
AI-generated from the title and abstract; the full text is not read.
Key points
- A superconducting dome was observed in the band insulator MoS(2).
- Electrostatic doping was used to tune carrier density.
- Optimal doping in the low-carrier density regime led to a large enhancement in transition temperature (T(c)).
- This suggests superconducting domes can occur in doped band insulators.
AI-generated from the title and abstract; the full text is not read.
Abstract
A dome-shaped superconducting region appears in the phase diagrams of many unconventional superconductors. In doped band insulators, however, reaching optimal superconductivity by the fine-tuning of carriers has seldom been seen. We report the observation of a superconducting dome in the temperature-carrier density phase diagram of MoS(2), an archetypal band insulator. By quasi-continuous electrostatic carrier doping achieved through a combination of liquid and solid gating, we revealed a large enhancement in the transition temperature T(c) occurring at optimal doping in the chemically inaccessible low-carrier density regime. This observation indicates that the superconducting dome may arise even in doped band insulators.
The authors' abstract, as published at the source. Science, 2012 · DOI ↗
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Field: Condensed Matter Physics
Condensed Matter PhysicsPhysics and Astronomy