Fermi surfaces, electron-hole asymmetry, and correlation kink in a three-dimensional Fermi liquid LaNiO3

Ritsuko Eguchi, A. Chainani, M. Taguchi, M. Matsunami, Y. Ishida, K. Horiba, Y. Senba, H. Ohashi, S. Shin

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

We report the three-dimensional (3D) momentum-resolved soft x-ray photoemission spectroscopy of the Fermi liquid LaNiO3. The out-of-plane and in-plane cuts of the 3D electron- and hole-Fermi surfaces (FSs) are observed by energy- and angle-dependent photoemission measurements. The energy bands forming the electron FS suggest an ω2 dependence of the imaginary part of the self-energy and a "correlation kink" at an energy scale of 0.25 eV. In contrast, the bands which form nesting character hole FSs do not show kinks and match local-density approximation calculations. The results indicate a momentum-dependent mass renormalization, leading to electron-hole asymmetry in strongly correlated LaNiO3.

Original languageEnglish
Article number115122
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number11
DOIs
Publication statusPublished - Mar 3 2009
Externally publishedYes

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Fermi liquids
Fermi surface
Fermi surfaces
asymmetry
Electrons
Momentum
photoelectric emission
momentum
Local density approximation
Photoemission
Photoelectron spectroscopy
Band structure
energy bands
energy
electrons
X rays
approximation
spectroscopy
x rays

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Fermi surfaces, electron-hole asymmetry, and correlation kink in a three-dimensional Fermi liquid LaNiO3. / Eguchi, Ritsuko; Chainani, A.; Taguchi, M.; Matsunami, M.; Ishida, Y.; Horiba, K.; Senba, Y.; Ohashi, H.; Shin, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 11, 115122, 03.03.2009.

Research output: Contribution to journalArticle

Eguchi, Ritsuko ; Chainani, A. ; Taguchi, M. ; Matsunami, M. ; Ishida, Y. ; Horiba, K. ; Senba, Y. ; Ohashi, H. ; Shin, S. / Fermi surfaces, electron-hole asymmetry, and correlation kink in a three-dimensional Fermi liquid LaNiO3. In: Physical Review B - Condensed Matter and Materials Physics. 2009 ; Vol. 79, No. 11.
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