Temperature dependence of the electronic structure of the charge-ordering manganite

A. Chainani, H. Kumigashira, T. Takahashi, Y. Tomioka, H. Kuwahara, Y. Tokura

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We study the changes in the occupied density of states of (Formula presented) as a function of temperature (25-300 K) using photoemission spectroscopy. The spectral weight transfer across the metal-insulator/charge-ordering/ferromagnetic-antiferromagnetic transition is abrupt and over very large energy scales (up to 1.2 eV from the Fermi level (Formula presented) compared to the transition temperature (Formula presented) (∼12 meV) and the gap value in the insulating phase (∼100 meV). Negligible changes observed at (Formula presented) in the ferromagnetic-metallic phase above (Formula presented) and a weak spectral weight transfer across the ferromagnetic-paramagnetic transition at (Formula presented) are consistent with negligible change in carrier density above (Formula presented).

Original languageEnglish
Pages (from-to)R15513-R15516
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number24
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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