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 article

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 - 2002 Mar 1
EventInternational Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States
Duration: 2002 Aug 62002 Aug 6

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Fermi surface
Photoelectron spectroscopy
Fermi surfaces
photoelectric emission
spectroscopy
Temperature
Neutron diffraction
neutron diffraction
energy

All Science Journal Classification (ASJC) codes

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

Cite this

Kiss, Takayuki ; Yokoya, Takayoshi ; Chainani, Ashish ; Shin, Shik ; Nohara, Minoru ; Takagi, Hidenori. / Fermi surface and superconducting gap of 2H-NbSe2 using low-temperature ultrahigh-resolution angle-resolved photoemission spectroscopy. In: Physica B: Condensed Matter. 2002 ; Vol. 312-313. pp. 666-667.
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Fermi surface and superconducting gap of 2H-NbSe2 using low-temperature ultrahigh-resolution angle-resolved photoemission spectroscopy. / Kiss, Takayuki; Yokoya, Takayoshi; Chainani, Ashish; Shin, Shik; Nohara, Minoru; Takagi, Hidenori.

In: Physica B: Condensed Matter, Vol. 312-313, 01.03.2002, p. 666-667.

Research output: Contribution to journalConference article

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AU - Kiss, Takayuki

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AU - Chainani, Ashish

AU - Shin, Shik

AU - Nohara, Minoru

AU - Takagi, Hidenori

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