Fermi surface and superconducting gap of 2H-NbSe2 using low-temperature ultrahigh-resolution angle-resolved photoemission spectroscopy

Takayuki Kiss, Takayoshi Yokoya, Ashish Chainani, Shik Shin, Minoru Nohara, Hidenori Takagi

Research output: Contribution to journalConference articlepeer-review

15 Citations (Scopus)

Abstract

We have studied the Fermi surface (FS) and superconducting gap of 2H-NbSe2, using angle-resolved photoemission spectroscopy with an energy resolution of 2.2 meV and an angle resolution of ±0.13°. We succeeded in distinguishing all FS sheets predicted from band calculations and found that the observed hexagonal Fermi surface nesting vector centered at the Γ point is larger than the CDW nesting vector reported from neutron diffraction measurements. Furthermore, a superconducting gap at one FS sheet is successfully observed.

Original languageEnglish
Pages (from-to)666-667
Number of pages2
JournalPhysica B: Condensed Matter
Volume312-313
DOIs
Publication statusPublished - Mar 1 2002
Externally publishedYes
EventInternational Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States
Duration: Aug 6 2002Aug 6 2002

Keywords

  • ARPES
  • Fermi surface
  • Superconducting gap

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Fermi surface and superconducting gap of 2H-NbSe<sub>2</sub> using low-temperature ultrahigh-resolution angle-resolved photoemission spectroscopy'. Together they form a unique fingerprint.

Cite this