Jahn-Teller effect on orbital ordering and dynamics in ferromagnetic LaMnO3

被引：36

作者：

Bala, J ^{[1
]}

Oles, AM ^{[1
]}

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.62.R6085

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the combined influence of superexchange interactions and coupling to lattice degrees of freedom of strongly correlated e(g) electrons in the ferromagnetic phase of LaMnO3. Ionic displacements and orbital order are analyzed as a function of uniaxial pressure and the Jahn-Teller interactions. We report a large gap in the orbital excitation spectrum resulting from the lattice coupling which can lead to a strong confinement of holes in lightly doped LaMnO3 insulators.

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收藏

页码：R6085 / R6088

页数：4

相关论文

共 25 条

[1] Interplay of charge and orbital ordering in manganese perovskites [J].

Ahn, KH ;

Millis, AJ .

PHYSICAL REVIEW B, 1998, 58 (07) :3697-3703

[2] Anti-Jahn-Teller polaron in LaMnO3 [J].

Allen, PB ;

Perebeinos, V .

PHYSICAL REVIEW B, 1999, 60 (15) :10747-10753

[3] Jahn-Teller distortion and electronic correlation effects in undoped manganese perovskites [J].

Benedetti, P ;

Zeyher, R .

PHYSICAL REVIEW B, 1999, 59 (15) :9923-9928

[4] Electronic structure of early 3d-transition-metal oxides by analysis of the 2p core-level photoemission spectra [J].

Bocquet, AE ;

Mizokawa, T ;

Morikawa, K ;

Fujimori, A ;

Barman, SR ;

Maiti, K ;

Sarma, DD ;

Tokura, Y ;

Onoda, M .

PHYSICAL REVIEW B, 1996, 53 (03) :1161-1170

[5] ELECTRONIC-STRUCTURE OF 3D-TRANSITION-METAL COMPOUNDS BY ANALYSIS OF THE 2P CORE-LEVEL PHOTOEMISSION SPECTRA [J].

BOCQUET, AE ;

MIZOKAWA, T ;

SAITOH, T ;

NAMATAME, H ;

FUJIMORI, A .

PHYSICAL REVIEW B, 1992, 46 (07) :3771-3784

[6] CRYSTALLOGRAPHIC AND MAGNETIC STRUCTURES OF LA1-XBAXMN1-XMEXO3 (ME = MN OR TI) [J].

ELEMANS, JBA ;

VANLAAR, B ;

VANDERVE.KR ;

LOOPSTRA, BO .

JOURNAL OF SOLID STATE CHEMISTRY, 1971, 3 (02) :238-&

[7] Electronic origin of magnetic and orbital ordering in insulating LaMnO3 [J].

Feiner, LF ;

Oles, AM .

PHYSICAL REVIEW B, 1999, 59 (05) :3295-3298

[8] Quantum melting of magnetic order due to orbital fluctuations [J].

Feiner, LF ;

Oles, AM ;

Zaanen, J .

PHYSICAL REVIEW LETTERS, 1997, 78 (14) :2799-2802

[9] RELATIONSHIP BETWEEN CRYSTAL SYMMETRY AND MAGNETIC PROPERTIES OF IONIC COMPOUNDS CONTAINING MN3 [J].

GOODENOUGH, J ;

ARNOTT, RJ ;

MENYUK, N ;

WOLD, A .

PHYSICAL REVIEW, 1961, 124 (02) :373-&

[10] Metal-insulator transitions [J].

Imada, M ;

Fujimori, A ;

Tokura, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (04) :1039-1263