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Updated: Dec 23, 2025

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
Published on: November 28, 2017
Structural Phase Transition of Multilayer VSe2
Dian Li1, Xiong Wang1, Chi-Ming Kan1
1Physics Department, University of Hong Kong, Hong Kong SAR, P. R. China.
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.
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