Evolution of transport and magnetic properties with dysprosium doping in La0.7-xDyxSr0.3MnO3 (x=0-0.4)

被引：24

作者：

Mitra, C ^{[1
]}

Raychaudhuri, P ^{[1
]}

Dhar, SK ^{[1
]}

Nigam, AK ^{[1
]}

Pinto, R ^{[1
]}

Pattalwar, SM ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, NCGINSM, Colaba 400005, Mumbai, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 192卷 / 01期

关键词：

colossal magnetoresistance (CMR); perovskite manganites; magnetization; spin-glasses;

D O I：

10.1016/S0304-8853(98)00388-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the magnetic and transport properties in the series La0.7-xDyxSr0.3MnO3 (0.0 less than or equal to x less than or equal to 0.4). Susceptibility and resistivity studies show that La0.7-xDyxSr0.3MnO3 for x < 0.35 order ferromagnetically and show metal-insulator transition. Magnetic and transport studies show a gradual increase of antiferromagnetic interaction with x, ultimately leading to a spin-glass-like state for x > 0.3 compounds. The sample with x = 0.4 shows a dramatic increase in resistivity near the spin-glass ordering temperature T-SG. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：130 / 136

页数：7

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