Charge dynamics of perovskite manganese oxides - Effects of orbital degeneracy, electron correlation and Jahn-Teller distortion

Hiroki Nakano, Yukitoshi Motome, Masatoshi Imada

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To understand the incoherent optical response of La1 - x SrxMnO3 in the ferromagnetic and metallic phase near the metal-insulator transition, we examine the effects of eg-orbital degeneracy, Coulomb interactions, and Jahn-Teller distortions under the perfect polarization of spins, employing the Lanczös diagonalization method. Orbital fluctuations by the Coulomb interaction induce a large and broad structure of the incoherence and suppress Drude weight. The Jahn-Teller distortions work cooperatively to enhance this incoherence.

Original languageEnglish
Pages (from-to)1406-1407
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART II
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

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Keywords

  • Incoherent charge dynamics
  • Jahn-Teller distortion
  • Optical conductivity
  • Perovskite manganites

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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