To characterize in detail the charge density wave (CDW) transition of 1T-VSe2, its electronic structure and lattice dynamics are comprehensively studied by means of x-ray diffraction, muon spectroscopy, angle resolved photoemission (ARPES), diffuse and inelastic x-ray scattering, and state-of-the-art first-principles density functional theory calculations. Resonant elastic x-ray scattering does not show any resonant enhancement at either V or Se, indicating that the CDW peak at the K edges describes a purely structural modulation of the electronic ordering. ARPES experiments identify (i) a pseudogap at T>T-CDW, which leads to a depletion of the density of states in the ML-M'L' plane at T
Title
Electronic structure and lattice dynamics of 1T-VSe2:Origin of the three-dimensional charge density wave
Published in
Physical Review B
Volume
109
Issue
3
Pages
035133
Date
2024-01-16
Publisher
College Pk, Amer Physical Soc
ISSN
2469-9950
2469-9969
Grant
Department of Education of the Basque Government: PRE-2020-1-0220
MINECO of Spain: PID2021-122609NB-C22
MCIN
European Union Next Generation: EU/PRTR-C17
Iker-basque Foundation
DIPC on behalf of the Department of Education of the Basque Government
Department of Education, Universities and Research of the Eusko Jaurlaritza
University of the Basque Country UPV/EHU: IT1527-22
Spanish Ministerio de Ciencia e Innovacin: PID2022-142861NA-100
MINECO Project: PID2021-125927NB-C21
Academy of Finland: 349696
European Research Council (ERC): 101052708
DESY (Hamburg, Germany)
DOE Office of Science by Argonne National Laboratory: DE-AC02-06CH11357
European Regional Development Fund (ERDF) within the Framework of the Smart Growth Operative Programme
Science and Technology Facilities Council: RB2220362
Record creation date
2024-04-17