Kim, Hyuk Jin Choi, Byoung Ki Lee, In Hak Kim, Min Jay Chun, Seung-Hyun Jozwiak, Chris Bostwick, Aaron Rotenberg, Eli Chang, Young Jun 2024-01-19T13:33:04Z 2024-01-19T13:33:04Z 2022-04-03 2021-10 1567-1739 https://pubs.kist.re.kr/handle/201004/116279 Vanadium disulfide (VS2) attracts elevated interests for its charge-density wave (CDW) phase transition, ferromagnetism, and catalytic reactivity, but the electronic structure of monolayer has not been well understood yet. Here we report synthesis of epitaxial 1T VS2 monolayer on bilayer graphene grown by molecular-beam epitaxy (MBE). Angle-resolved photoemission spectroscopy (ARPES) measurements reveal that Fermi surface with six elliptical pockets centered at the M points shows gap opening at low temperature. Temperature-dependence of the gap size suggests existence of CDW phase transition above room temperature. Our observations provide important evidence to understand the strongly correlated electron physics and the related surface catalytic properties in two-dimensional transition-metal dichalcogenides (TMDCs). English Elsevier Electronic structure and charge-density wave transition in monolayer VS2 Article 10.1016/j.cap.2021.03.020 1 Current Applied Physics, v.30, pp.8 - 13 Current Applied Physics 30 8 13 N scie scopus kci 000735613300003 2-s2.0-85104374945 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article METAL DICHALCOGENIDES NANOSHEETS GRAPHENE DRIVEN SE Transition-metal dichalcogenide Vanadium disulfide Charge-density wave Molecular-beam epitaxy Angle-resolved photoemission spectroscopy