Direct Observation of the Mass Renormalization in SrVO3 by Angle Resolved Photoemission Spectroscopy

T. Yoshida, K. Tanaka, H. Yagi, A. Ino, H. Eisaki, A. Fujimori, and Z.-X. Shen
Phys. Rev. Lett. 95, 146404 – Published 30 September 2005

Abstract

Band dispersions and Fermi surfaces of the three-dimensional Mott-Hubbard system SrVO3 are directly observed by angle-resolved photoemission spectroscopy. An observed spectral weight distribution near the Fermi level (EF) shows cylindrical Fermi surfaces as predicted by band-structure calculations. By comparing the experimental results with calculated surface electronic structures, we conclude that the obtained band dispersion reflects the bulk electronic structure. The enhanced effective electron mass obtained from the energy band near EF is consistent with the bulk thermodynamic properties and hence with the normal Fermi-liquid behavior of SrVO3.

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  • Received 30 March 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.146404

©2005 American Physical Society

Authors & Affiliations

T. Yoshida1, K. Tanaka1, H. Yagi1, A. Ino2, H. Eisaki3, A. Fujimori1, and Z.-X. Shen4

  • 1Department of Complexity Science and Engineering and Department of Physics, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
  • 2Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima 739-8526, Japan
  • 3National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan
  • 4Department of Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA

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Issue

Vol. 95, Iss. 14 — 30 September 2005

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