Electronic structure of LaO1-x Fx BiSe2 (x=0.18) revealed by photoelectron spectromicroscopy

N. L. Saini, D. Ootsuki, E. Paris, B. Joseph, A. Barinov, M. Tanaka, Y. Takano, Takashi Mizokawa

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report an electronic structure study on LaO1-xFxBiSe2 (x=0.18) by means of photoelectron spectromicroscopy. The Fermi surfaces and band dispersions are basically consistent with the band-structure calculations on BiS2-based materials, indicating that the electron correlation effects may be irrelevant to describe physics of the new BiSe2 system. In LaO1-xFxBiSe2 (x=0.18), the area of the Fermi pockets is estimated to be 0.16±0.02 per Bi, consistent with the amount of F substitution. Although the spectromicroscopy technique avoids the effect of microscale inhomogeneity for angle-resolved photoemission spectroscopy (ARPES), the ARPES spectral features are rather broad in the momentum space, indicating the likely effect of local disorder in the BiSe2 layer.

Original languageEnglish
Article number214517
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number21
DOIs
Publication statusPublished - 2014 Dec 19
Externally publishedYes

Fingerprint

Photoelectron spectroscopy
Photoelectrons
Electronic structure
photoelectrons
electronic structure
Electron correlations
Fermi surface
photoelectric emission
Dispersions
Band structure
Momentum
Substitution reactions
Physics
microbalances
spectroscopy
Fermi surfaces
inhomogeneity
disorders
substitutes
momentum

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Electronic structure of LaO1-x Fx BiSe2 (x=0.18) revealed by photoelectron spectromicroscopy. / Saini, N. L.; Ootsuki, D.; Paris, E.; Joseph, B.; Barinov, A.; Tanaka, M.; Takano, Y.; Mizokawa, Takashi.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 90, No. 21, 214517, 19.12.2014.

Research output: Contribution to journalArticle

Saini, N. L. ; Ootsuki, D. ; Paris, E. ; Joseph, B. ; Barinov, A. ; Tanaka, M. ; Takano, Y. ; Mizokawa, Takashi. / Electronic structure of LaO1-x Fx BiSe2 (x=0.18) revealed by photoelectron spectromicroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Vol. 90, No. 21.
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AU - Barinov, A.

AU - Tanaka, M.

AU - Takano, Y.

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