Electronic structure and lattice dynamics of 1T-VSe2:Origin of the three-dimensional charge density wave
Diego, Josu; Subires, D.; Said, A. H.; Chaney, D. A.; Korshunov, A.; Garbarino, G.; Diekmann, F.; Mahatha, S. K.; Pardo, V.; Wilkinson, J. M.; Lord, J. S.; Strempfer, J.; Perez, Pablo J. Bereciartua; Francoual, S.; Popescu, C.; Tallarida, M.; Dai, J.; Bianco, Raffaello; Monacelli, Lorenzo; Calandra, Matteo; Bosak, A.; Mauri, Francesco; Rossnagel, K.; Fumega, Adolfo O.; Errea, Ion; Blanco-Canosa, S.
2024

Abstract

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

Details

Title Electronic structure and lattice dynamics of 1T-VSe2:Origin of the three-dimensional charge density wave
Author(s) Diego, Josu ; Subires, D. ; Said, A. H. ; Chaney, D. A. ; Korshunov, A. ; Garbarino, G. ; Diekmann, F. ; Mahatha, S. K. ; Pardo, V. ; Wilkinson, J. M. ; Lord, J. S. ; Strempfer, J. ; Perez, Pablo J. Bereciartua ; Francoual, S. ; Popescu, C. ; Tallarida, M. ; Dai, J. ; Bianco, Raffaello ; Monacelli, Lorenzo ; Calandra, Matteo ; Bosak, A. ; Mauri, Francesco ; Rossnagel, K. ; Fumega, Adolfo O. ; Errea, Ion ; Blanco-Canosa, S.
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
Keywords
DOI https://doi.org/10.1103/PhysRevB.109.035133
Other identifier(s) View record in Web of Science
Laboratories THEOS
Record Appears in Scientific production and competences > STI - School of Engineering > IMX - Institute of Materials > THEOS - Laboratory of theory and simulation of materials
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
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