Electronic structure and charge-density wave transition in monolayer VS2
نویسندگان
چکیده
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 epitaxial 1T VS2 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 M points shows gap opening low temperature. Temperature-dependence size suggests existence CDW transition above room Our observations provide important evidence to understand strongly correlated electron physics related properties in two-dimensional transition-metal dichalcogenides (TMDCs).
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ژورنال
عنوان ژورنال: Current Applied Physics
سال: 2021
ISSN: ['1567-1739', '1878-1675']
DOI: https://doi.org/10.1016/j.cap.2021.03.020