Colossal magnetoresistance in screen printed La0.67Ca0.33MnO3 thick films

被引：11

作者：

Hossain, AKMA ^{[1
]}

Cohen, LF

Berenov, A

Driscoll, JLM

机构：

[1] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

[3] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2000年 / 77卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

colossal magnetoresistance; thick film; transition temperature; screen printing; sintering;

D O I：

10.1016/S0921-5107(00)00497-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thick films of La0.67Ca0.33MnO3 were fabricated on (100) oriented single crystal LaAlO3 (LAO), yttria stabilized zirconia (YSZ) and on polycrystalline Al2O3 by a screen printing technique. A range of sintering conditions were explored with temperature of 1200, 1300 and 1400 degrees C, and in air, oxygen and nitrogen atmospheres. Magnetic and DC resistance properties were measured on all films. The so-called 'colossal magnetoresistance' (CMR) behaviour was found to occur for films on all substrates but for specific preparation conditions. The salient feature of the CMR observed in these thick films is that MR is not limited to a small temperature window near the metal-insulator transition (M-I), T-p1. The MR peak is very broad and for some films a temperature independent CMR is observed at temperatures below T-p1. Several repeat films were made and the reproducibility of the results obtained in the first batch was confirmed. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：261 / 267

页数：7

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