Stripes induced by orbital ordering in layered manganites

被引：67

作者：

Hotta, T

Feiguin, A

Dagotto, E

机构：

[1] Univ Tokyo, Inst Solit State Phys, Kashiwa, Chiba 2778581, Japan

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.86.4922

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin-charge-orbital ordered structures in doped layered manganites are investigated using an orbital-degenerate double-exchange model tightly coupled to Jahn-Teller distortions. In the ferromagnetic phase, unexpected diagonal stripes at x = l/m (m = integer) are observed, as in recent experiments. These stripes are induced by the orbital degree of freedom, which forms a staggered pattern in the background. A rr shift in the orbital order across stripes is identified, analogous to the rr shift in spin order across stripes in cuprates. At x = 1/4 and 1/3. another nonmagnetic phase with diagonal static charge stripes is stabilized at intermediate values of the t(2g)-spins exchange coupling.

引用

收藏

页码：4922 / 4925

页数：4

相关论文

共 23 条

[11] Topological scenario for stripe formation in manganese oxides [J].

Hotta, T ;

Takada, Y ;

Koizumi, H ;

Dagotto, E .

PHYSICAL REVIEW LETTERS, 2000, 84 (11) :2477-2480

[12] Charge-orbital ordering and phase separation in the two-orbital model for manganites: Roles of Jahn-Teller phononic and Coulombic interactions [J].

Hotta, T ;

Malvezzi, AL ;

Dagotto, E .

PHYSICAL REVIEW B, 2000, 62 (14) :9432-9452

[13] MAGNETIC-PROPERTIES OF K2NIF4 TYPE OXIDES, SRLAMNO4+X (O LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 0.2) [J].

KAWANO, S ;

ACHIWA, N ;

KAMEGASHIRA, N ;

AOKI, M .

JOURNAL DE PHYSIQUE, 1988, 49 (C-8) :829-830

[14]

LAROCHELLE S, IN PRESS

[15] MAGNETIC AND ELECTRONIC-PROPERTIES IN HOLE-DOPED MANGANESE OXIDES WITH LAYERED STRUCTURES - LA1-XSR1+XMNO4 [J].

MORITOMO, Y ;

TOMIOKA, Y ;

ASAMITSU, A ;

TOKURA, Y ;

MATSUI, Y .

PHYSICAL REVIEW B, 1995, 51 (05) :3297-3300

[16] X-ray diffuse scattering due to polarons in a colossal magnetoresistive manganite [J].

Shimomura, S ;

Wakabayashi, N ;

Kuwahara, H ;

Tokura, Y .

PHYSICAL REVIEW LETTERS, 1999, 83 (21) :4389-4392

[17] Charge and magnetic order in La0.5Sr1.5MnO4 [J].

Sternlieb, BJ ;

Hill, JP ;

Wildgruber, UC ;

Luke, GM ;

Nachumi, B ;

Moritomo, Y ;

Tokura, Y .

PHYSICAL REVIEW LETTERS, 1996, 76 (12) :2169-2172

[18]

Tokura Y., 2000, COLOSSAL MAGNETORESI

[19] EVIDENCE FOR STRIPE CORRELATIONS OF SPINS AND HOLES IN COPPER-OXIDE SUPERCONDUCTORS [J].

TRANQUADA, JM ;

STERNLIEB, BJ ;

AXE, JD ;

NAKAMURA, Y ;

UCHIDA, S .

NATURE, 1995, 375 (6532) :561-563

[20] Charge melting and polaron collapse in La1.2Sr1.8Mn2O7 [J].

Vasiliu-Doloc, L ;

Rosenkranz, S ;

Osborn, R ;

Sinha, SK ;

Lynn, JW ;

Mesot, J ;

Seeck, OH ;

Preosti, G ;

Fedro, AJ ;

Mitchell, JF .

PHYSICAL REVIEW LETTERS, 1999, 83 (21) :4393-4396