Shift of mobility edge as an origin of colossal magnetoresistance in heavily doped lanthanum manganites

被引：4

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 MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷

基金：

俄罗斯基础研究基金会;

关键词：

colossal magnetoresistance; metal-insulator transition;

D O I：

10.1016/S0304-8853(98)00808-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The simple semiphenomenological theory of colossal magnetoresistance in heavily doped lanthanum manganites is proposed. The metal-insulator transition is assumed to be caused by shift of mobility edge. The theory involves a small set of parameters which can be easily found experimentally. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：451 / 452

页数：2

共 9 条

[1] Effect of disorder on the magnetic and transport properties of La1-xSrxMnO3 [J].

Allub, R ;

Alascio, B .

SOLID STATE COMMUNICATIONS, 1996, 99 (09) :613-617

[2] The Hall effect in La0.67Ba0.33MnO3 [J].

Bebenin, NG ;

Zainullina, RI ;

Mashkautsan, VV ;

Burkhanov, AM ;

Ustinov, VV ;

Vasil'ev, VV ;

Slobodin, BV .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 1998, 86 (03) :534-537

[3] Charge carriers in La0.67-xYxBa0.33MnO3 [J].

Bebenin, NG ;

Loshkareva, NN ;

Sukhorukov, YP ;

Nossov, AP ;

Zainullina, RI ;

Vassiliev, VG ;

Slobodin, BV ;

Demchuk, KM ;

Ustinov, VV .

SOLID STATE COMMUNICATIONS, 1998, 106 (06) :357-361

[4] Conduction and disorder in LaMnO3-based materials [J].

Bebenin, NG ;

Ustinov, VV .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (28) :6301-6309

[5]

BEBENIN NG, IN PRESS

[6] Evidence of magnetization-dependent polaron distortion in La(1-x)A(x)MnO(3), A=Ca, Pb [J].

Booth, CH ;

Bridges, F ;

Snyder, GJ ;

Geballe, TH .

PHYSICAL REVIEW B, 1996, 54 (22) :15606-15609

[7] Charge localization in disordered colossal-magnetoresistance manganites [J].

Li, QM ;

Zang, J ;

Bishop, AR ;

Soukoulis, CM .

PHYSICAL REVIEW B, 1997, 56 (08) :4541-4544

[8] Colossal magnetoresistance [J].

Ramirez, AP .

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

[9] Thermal conductivity of manganite perovskites: Colossal magnetoresistance as a lattice-dynamics transition [J].

Visser, DW ;

Ramirez, AP ;

Subramanian, MA .

PHYSICAL REVIEW LETTERS, 1997, 78 (20) :3947-3950

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