Monolayer Superconductivity in WS2

Oleksandr Zheliuk, Jianming Lu, Jie Yang, Jianting Ye*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Superconductivity in monolayer tungsten disulfide (2H-WS2) is achieved by strong electrostatic electron doping of an electric double-layer transistor (EDLT). Single crystals of WS2 are grown by a scalable method - chemical vapor deposition (CVD) on standard Si/SiO2 substrate. The monolayers are identified by both AFM and color-coding techniques. The EDLT device based on single-layer WS2 shows ambipolar transfer characteristics indicating a semiconducting nature of the material. Metallic transport on the electron side evolves into superconductivity with critical temperature T-c = 3.15 K.

Original languageEnglish
Article number1700245
Number of pages3
JournalPhysica status solidi-Rapid research letters
Volume11
Issue number9
DOIs
Publication statusPublished - Sep-2017

Keywords

  • chemical vapor deposition
  • monolayers
  • superconductivity
  • transition metal dichalcogenides
  • TRANSITION-METAL DICHALCOGENIDES

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