Conduction and disorder in LaMnO3-based materials

被引：32

作者：

Bebenin, NG ^{[1
]}

Ustinov, VV ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1998年 / 10卷 / 28期

关键词：

D O I：

10.1088/0953-8984/10/28/011

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We propose a simple theory of colossal magnetoresistance in which the metal-insulator transition in heavily doped lanthanum manganites is assumed to be caused by a shift of the mobility edge. The theory involves a small set of parameters which have clear physical meaning and can be easily found experimentally. The detailed comparison with experimental data available is made.

引用

页码：6301 / 6309

页数：9

共 26 条

[11] DOUBLE EXCHANGE ALONE DOES NOT EXPLAIN THE RESISTIVITY OF LA1-XSRXMNO3 [J].

MILLIS, AJ ;

LITTLEWOOD, PB ;

SHRAIMAN, BI .

PHYSICAL REVIEW LETTERS, 1995, 74 (25) :5144-5147

[12] Fermi-liquid-to-polaron crossover .1. General results [J].

Millis, AJ ;

Mueller, R ;

Shraiman, BI .

PHYSICAL REVIEW B, 1996, 54 (08) :5389-5404

[13] Fermi-liquid-to-polaron crossover .2. Double exchange and the physics of colossal magnetoresistance [J].

Millis, AJ ;

Mueller, R ;

Shraiman, BI .

PHYSICAL REVIEW B, 1996, 54 (08) :5405-5417

[14] METAL-INSULATOR TRANSITIONS IN NON-CRYSTALLINE SYSTEMS [J].

MOTT, NF .

ADVANCES IN PHYSICS, 1985, 34 (03) :329-401

[15]

Mott NF., 1971, Electronic Processes in Non-crystalline Materials

[16]

NAGAEV EL, 1996, SOV PHYS USP, V39, P781

[17] Semiconductor-metal transition and magnetoresistance in (La,Ca)MnO3: Experiments and simple model [J].

Pierre, J ;

Robaut, F ;

Misat, S ;

Strobel, P ;

Nossov, A ;

Ustinov, V ;

Vassiliev, V .

PHYSICA B, 1996, 225 (3-4) :214-224

[18] Colossal magnetoresistance [J].

Ramirez, AP .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (39) :8171-8199

[19] Cation disorder and size effects in magnetoresistive manganese oxide perovskites [J].

RodriguezMartinez, LM ;

Attfield, JP .

PHYSICAL REVIEW B, 1996, 54 (22) :15622-15625

[20] Density-functional studies of the electronic structure of the perovskite oxides: La1-xCaxMnO3 [J].

Satpathy, S ;

Popovic, ZS ;

Vukajlovic, FR .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :4555-4557

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