Enhanced low field magnetoresistance in nanocrystalline La0.7Sr0.3MnO3 synthesized on MgO nanowires

被引：21

作者：

Zhang, Z. ^{[1
]}

Ranjith, R. ^{[2
]}

Xie, B. T. ^{[3
]}

You, L. ^{[4
]}

Wong, L. M. ^{[5
]}

Wang, S. J. ^{[5
]}

Wang, J. L. ^{[4
]}

Prellier, W. ^{[2
]}

Zhao, Y. G. ^{[3
]}

Wu, T. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore

[2] CNRS, ENSICAEN, Lab CRISMAT, UMR 6508, F-14050 Caen, France

[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Div Mat Sci, Singapore 639798, Singapore

[5] Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 22期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

antimony compounds; chalcogenide glasses; dielectric thin films; germanium compounds; nanoelectronics; nanowires; phase change materials; semiconductor quantum wires; semiconductor storage; stress relaxation; tellurium compounds; THIN-FILMS; GRAIN-BOUNDARIES; MANGANITES; GROWTH;

D O I：

10.1063/1.3432113

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the structure and transport properties of nanocrystalline manganite La0.7Sr0.3MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties. (C) 2010 American Institute of Physics. [doi:10.1063/1.3432113]

引用

页数：3

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