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

Hiroki Nakano, Yukitoshi Motome, Masatoshi Imada

研究成果: Article

1 引用 (Scopus)

抄録

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.

元の言語English
ページ(範囲)1406-1407
ページ数2
ジャーナルPhysica B: Condensed Matter
284-288
発行部数PART II
DOI
出版物ステータスPublished - 2000 1 1
外部発表Yes

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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

ASJC Scopus subject areas

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

これを引用

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

:: Physica B: Condensed Matter, 巻 284-288, 番号 PART II, 01.01.2000, p. 1406-1407.

研究成果: Article

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AB - 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.

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