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

Fingerprint

incoherence
Jahn-Teller effect
Electron correlations
electron orbitals
Manganese oxide
manganese oxides
Coulomb interactions
Perovskite
orbitals
Metal insulator transition
insulators
interactions
Polarization
polarization
metals
manganese oxide
perovskite

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

Cite this

Charge dynamics of perovskite manganese oxides - Effects of orbital degeneracy, electron correlation and Jahn-Teller distortion. / Nakano, Hiroki; Motome, Yukitoshi; Imada, Masatoshi.

In: Physica B: Condensed Matter, Vol. 284-288, No. PART II, 01.01.2000, p. 1406-1407.

Research output: Contribution to journalArticle

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