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

doi:10.1103/PhysRevB.68.155108

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 journal › Article › peer-review

1 Citation (Scopus)

Abstract

High-resolution angle-resolved photoemission spectroscopy (ARPES) has been performed on a layered transition-metal dichalcogenide (TMDC) 1T – VSe₂ 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 E_F is considerably suppressed below the transition temperature (T_c = 110 K) around the nested portion, while a negligible spectral change is observed even across T_c 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 language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.68.155108
Publication status	Published - Oct 15 2003
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.68.155108

Cite this

@article{d6841fbd343445578da9594f3de466de,

title = "Charge-density wave transition of 1T–VSe2 studied by angle-resolved photoemission spectroscopy",

abstract = "High-resolution angle-resolved photoemission spectroscopy (ARPES) has been performed on a layered transition-metal dichalcogenide (TMDC) 1T – VSe2 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{\textquoteright}s.",

author = "Kensei Terashima and T. Sato and H. Komatsu and T. Takahashi and N. Maeda and K. Hayashi",

year = "2003",

month = oct,

day = "15",

doi = "10.1103/PhysRevB.68.155108",

language = "English",

volume = "68",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Charge-density wave transition of 1T–VSe2 studied by angle-resolved photoemission spectroscopy

AU - Terashima, Kensei

AU - Sato, T.

AU - Komatsu, H.

AU - Takahashi, T.

AU - Maeda, N.

AU - Hayashi, K.

PY - 2003/10/15

Y1 - 2003/10/15

N2 - High-resolution angle-resolved photoemission spectroscopy (ARPES) has been performed on a layered transition-metal dichalcogenide (TMDC) 1T – VSe2 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.

AB - High-resolution angle-resolved photoemission spectroscopy (ARPES) has been performed on a layered transition-metal dichalcogenide (TMDC) 1T – VSe2 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.

UR - http://www.scopus.com/inward/record.url?scp=85039011769&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85039011769&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.68.155108

DO - 10.1103/PhysRevB.68.155108

M3 - Article

AN - SCOPUS:85039011769

SN - 1098-0121

VL - 68

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 5

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this