Charge ordering and disordering transitions in as investigated by optical spectroscopy

Y. Okimoto, Y. Tomioka, Y. Onose, Y. Otsuka, Y. Tokura

Research output: Contribution to journalArticle

122 Citations (Scopus)

Abstract

The magnetic-field dependence of optical spectra and their anisotropy have been investigated for a single crystal of (Formula presented) at 30 K. The charge-ordered (CO) state is transformed into a ferromagnetic metallic state by a magnetic field of 6.5 T, which is manifested in a huge change of optical spectra over a wide photon-energy region (0.05 eV-3 eV). The observed change in magnitude and anisotropy of the optical spectra with the external magnetic field has been elucidated in terms of the spin- and orbital-ordering structures in the CO state.

Original languageEnglish
Pages (from-to)R9377-R9380
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number16
DOIs
Publication statusPublished - 1998 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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