2024/08/12 by Turgut Yilmaz, Xiao Tong, Yilmaz, Turgut +11
Materials Science · #2D Materials and Applications #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Organic and Molecular Conductors Research #Solid-state spectroscopy and crystallography
paper · pdf · doi:10.48550/arxiv.2408.05930
openalex publication_date 2024/08/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
The electronic origin of the structural transition in 1T-VSe2 is re-evaluated through an extensive angle-resolved photoemission spectroscopy experiment. The components of the band structure, missing in previous reports, are revealed. Earlier observations, shown to be temperature independent and therefore not correlated with the phase transition, are explained in terms of the increased complexity of the band structure close to the Fermi level. Only the overall size of the Fermi surface is found to be positively correlated with the phase transition at 110 K. These observations, quite distant from the charge density wave scenario commonly considered for 1T-VSe2, bring fresh perspectives toward the correct description of structural transitions in dichalcogenides materials.