Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy

Kensei Terashima, T. Sato, H. Komatsu, T. Takahashi, N. Maeda, K. Hayashi

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

High-resolution angle-resolved photoemission spectroscopy (ARPES) has been performed on a layered transition-metal dichalcogenide (TMDC) 1T-VSe 2 to study the (4×4) charge-density wave (CDW) mechanism. We observed a partial Fermi-surface (FS) nesting on the electronlike FS centered at the M (L) point. The spectral weight near EF is considerably suppressed below the transition temperature (Tc=110 K) around the nested portion, while a negligible spectral change is observed even across Tc in other portions of FS. This suggests that the CDW transition in 1T-VSe2 is caused by the three-dimensional FS nesting. Implications are discussed in relation to the physical properties of 1T-VSe2 as well as the ARPES results of other TMDC's.

Original languageEnglish
Article number155108
Pages (from-to)1551081-1551088
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number15
Publication statusPublished - Oct 2003
Externally publishedYes

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Charge density waves
Fermi surface
Photoelectron spectroscopy
Fermi surfaces
photoelectric emission
spectroscopy
Electron transitions
Superconducting transition temperature
Transition metals
Physical properties
physical properties
transition metals
transition temperature
high resolution

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Terashima, K., Sato, T., Komatsu, H., Takahashi, T., Maeda, N., & Hayashi, K. (2003). Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 68(15), 1551081-1551088. [155108].

Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy. / Terashima, Kensei; Sato, T.; Komatsu, H.; Takahashi, T.; Maeda, N.; Hayashi, K.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 68, No. 15, 155108, 10.2003, p. 1551081-1551088.

Research output: Contribution to journalArticle

Terashima, K, Sato, T, Komatsu, H, Takahashi, T, Maeda, N & Hayashi, K 2003, 'Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy', Physical Review B - Condensed Matter and Materials Physics, vol. 68, no. 15, 155108, pp. 1551081-1551088.
Terashima K, Sato T, Komatsu H, Takahashi T, Maeda N, Hayashi K. Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy. Physical Review B - Condensed Matter and Materials Physics. 2003 Oct;68(15):1551081-1551088. 155108.
Terashima, Kensei ; Sato, T. ; Komatsu, H. ; Takahashi, T. ; Maeda, N. ; Hayashi, K. / Charge-density wave transition of 1T-VSe2 studied by angle-resolved photoemission spectroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2003 ; Vol. 68, No. 15. pp. 1551081-1551088.
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