Structural Phase Transition of Multilayer VSe2

Dian Li, Xiong Wang, Chi Ming Kan, Daliang He, Zejun Li, Qing Hao, Hongbo Zhao, Changzheng Wu, Chuanhong Jin, Xiaodong Cui

Research output: Contribution to journalArticle

Abstract

Vanadium diselenide (VSe2), a member of the transition metal dichalcogenides (TMDs) family, is emerging as a promising two-dimensional (2D) candidate for the electronic and spintronic device with exotic properties including charge/spin density wave and ferromagnetism. The bulk crystal VSe2 exists in a crystallographic form of 1T-phase with metallic behavior. In this paper, we report a structural phase transition of multilayer VSe2 from 1T to 2H through annealing at 650 K, accompanying a metal-insulator transition. We observe that the 2H-phase is more thermodynamically favorable than the 1T-phase at 2D.

Original languageEnglish (US)
Pages (from-to)25143-25149
Number of pages7
JournalACS Applied Materials and Interfaces
Volume12
Issue number22
DOIs
StatePublished - Jun 3 2020

Keywords

  • 2D material
  • 2H-phase
  • metal-insulator transition
  • structural phase transition
  • vanadium diselenide

ASJC Scopus subject areas

  • Materials Science(all)

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    Li, D., Wang, X., Kan, C. M., He, D., Li, Z., Hao, Q., Zhao, H., Wu, C., Jin, C., & Cui, X. (2020). Structural Phase Transition of Multilayer VSe2. ACS Applied Materials and Interfaces, 12(22), 25143-25149. https://doi.org/10.1021/acsami.0c04449