Orbital polarons and ferromagnetic insulators in manganites

Takashi Mizokawa, D. I. Khomskii, G. A. Sawatzky

研究成果: Article

66 引用 (Scopus)

抄録

We argue that in lightly hole doped perovskite-type Mn oxides the holes (Mn4+ sites) are surrounded by nearest neighbor Mn3+ sites in which the occupied 3d orbitals have their lobes directed towards the central hole (Mn4+) site and with spins coupled ferromagnetically to the central spin. This composite object, which can be viewed as a combined orbital-spin-lattice polaron, is accompanied by the breathing type (Mn4+) and Jahn-Teller type (Mn3+) local lattice distortions. We present calculations which indicate that for certain doping levels these orbital polarons may crystallize into a charge and orbitally ordered ferromagnetic insulating state.

元の言語English
記事番号024403
ページ(範囲)244031-244035
ページ数5
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
63
発行部数2
出版物ステータスPublished - 2001
外部発表Yes

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Manganites
Gene Conversion
Polarons
polarons
Perovskite
Oxides
Doping (additives)
insulators
orbitals
Composite materials
breathing
lobes
composite materials
oxides
perovskite

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

Orbital polarons and ferromagnetic insulators in manganites. / Mizokawa, Takashi; Khomskii, D. I.; Sawatzky, G. A.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 63, 番号 2, 024403, 2001, p. 244031-244035.

研究成果: Article

Mizokawa, T, Khomskii, DI & Sawatzky, GA 2001, 'Orbital polarons and ferromagnetic insulators in manganites', Physical Review B - Condensed Matter and Materials Physics, 巻. 63, 番号 2, 024403, pp. 244031-244035.
Mizokawa, Takashi ; Khomskii, D. I. ; Sawatzky, G. A. / Orbital polarons and ferromagnetic insulators in manganites. :: Physical Review B - Condensed Matter and Materials Physics. 2001 ; 巻 63, 番号 2. pp. 244031-244035.
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