Low-field magnetoresistance in La2/3Sr1/3MnO3 granular composites by a sol-gel coating process

Zhu T.; Wang ZM.; Zhao HW.Sun JR.Shen BG.Yan CH.

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Low-field magnetoresistance in La2/3Sr1/3MnO3 granular composites by a sol-gel coating process

机译：Low-field magnetoresistance in La2/3Sr1/3MnO3 granular composites by a sol-gel coating process

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摘要

The La2/3Sr1/3MnO3 granular composites have been prepared by a sol-gel coating process, in which the transport and magnetic properties have been systematically measured. It has been found that the low-field MR is enhanced owing to tunneling between the large and small La2/3Sr1/3MnO3 grains. Furthermore, the hysteretic MR behavior can be attributed to the different magnetization processes of the large and small ferromagnetic grains. (C) 2001 Elsevier Science Ltd. All rights reserved. References: 20

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来源
《Solid State Communications》 |2000年第8期|471-475|共5页
作者
Zhu T.; Wang ZM.; Zhao HW.Sun JR.Shen BG.Yan CH.;
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Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China.;

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正文语种英语
中图分类固体物理学;
关键词
Magnetically ordered materials; Chemical synthesis; Electronic transport; Perovskite manganite films; Giant magnetoresistance; Tunneling magnetoresistance; Resistivity; Polycrystalline; Temperatures; Particle; Size;

Low-field magnetoresistance in La2/3Sr1/3MnO3 granular composites by a sol-gel coating process

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