Magnetic and electrical properties of La0.67Ca0.33MnO3 as influenced by substitution of Cr

被引：55

作者：

Ganguly, R ^{[1
]}

Gopalakrishnan, IK ^{[1
]}

Yakhmi, JV ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Novel Mat & Struct Chem Div, Bombay 400085, Maharashtra, India

来源：

PHYSICA B | 2000年 / 275卷 / 04期

关键词：

colossal magneto-resistance; hole-doped manganates; structural transition; ferromagnetism; metal-insulator transition; double exchange interaction; super-exchange interaction; La0.67Ca0.33MnO3;

D O I：

10.1016/S0921-4526(99)00855-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The compounds La0.67Ca0.33Mn1-xCrxO3 (x = 0.00, 0.05, 0.10, 0.15, 0.20, 0.35, 0.50 and 0.60) have been studied by X-ray diffraction (XRD), AC and DC magnetization, and DC electrical resistivity measurement techniques. Ferromagnetism is observed up to as high as 60% of Cr substitution. Electrical resistivity behavior of the compounds as a function of temperature could be explained on the basis of adiabatic small polaron model. (C) 2000 Elsevier Science BV. All rights reserved.

引用

页码：308 / 315

页数：8

共 24 条

[1] Magnetic properties and colossal magnetoresistance of La(Ca)MnO3 materials doped with Fe [J].

Ahn, KH ;

Wu, XW ;

Liu, K ;

Chien, CL .

PHYSICAL REVIEW B, 1996, 54 (21) :15299-15302

[2] Electrical properties of La0.6Re0.1Ca0.3Mn0.3 (Re = Pr, Sm, Gd, Dy) at low temperature [J].

Barman, A ;

Ghosh, M ;

Biswas, S ;

De, SK ;

Chatterjee, S .

SOLID STATE COMMUNICATIONS, 1998, 106 (10) :691-694

[3] Extension of colossal magnetoresistance properties to small A site cations by chromium doping in Ln0.5Ca0.5MnO3 manganites [J].

Barnabe, A ;

Maignan, A ;

Hervieu, M ;

Damay, F ;

Martin, C ;

Raveau, B .

APPLIED PHYSICS LETTERS, 1997, 71 (26) :3907-3909

[4] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM [J].

BEDNORZ, JG ;

MULLER, KA .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02) :189-193

[5]

GANGULY R, IN PRESS PHYSICA B

[6] Electrical transport, magnetism, and magnetoresistance in ferromagnetic oxides with mixed exchange interactions: A study of the La0.7Ca0.3Mn1-xCoxO3 system [J].

Gayathri, N ;

Raychaudhuri, AK ;

Tiwary, SK ;

Gundakaram, R ;

Arulraj, A ;

Rao, CNR .

PHYSICAL REVIEW B, 1997, 56 (03) :1345-1353

[7] Effect of substitution of Cr3+ in place of Mn3+ in rare-earth manganates on the magnetism and magnetoresistance: Role of superexchange interaction and lattice distortion in LnMn(1-x)Cr(x)O(3) [J].

Gundakaram, R ;

Arulraj, A ;

Vanitha, PV ;

Rao, CNR ;

Gayathri, N ;

Raychaudhuri, AK ;

Cheetham, AK .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 127 (02) :354-358

[8] FERROMAGNETISM OF PD-FE ALLOYS PRODUCED BY LOW-TEMPERATURE ION-IMPLANTATION [J].

HITZFELD, M ;

ZIEMANN, P ;

BUCKEL, W ;

CLAUS, H .

PHYSICAL REVIEW B, 1984, 29 (09) :5023-5030

[9] LATTICE EFFECTS ON THE MAGNETORESISTANCE IN DOPED LAMNO3 [J].

HWANG, HY ;

CHEONG, SW ;

RADAELLI, PG ;

MAREZIO, M ;

BATLOGG, B .

PHYSICAL REVIEW LETTERS, 1995, 75 (05) :914-917

[10] DISORDERED ELECTRONIC SYSTEMS [J].

LEE, PA ;

RAMAKRISHNAN, TV .

REVIEWS OF MODERN PHYSICS, 1985, 57 (02) :287-337

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