Enhanced magnetoresistance at wide temperature range in [Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3]20 superlattice on (001) MgO

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成果类型：

期刊论文

作者：

Wang, H. O.*;Liu, H.;Cao, M. X.;Wang, X. Y.;Tan, W. S.*;...

通讯作者：

Wang, H. O.;Tan, W. S.

作者机构：

[Wang, H. O.] Hangzhou Dianzi Univ, Inst Mat Phys, Hangzhou 310018, Zhejiang, Peoples R China.

[Wang, X. Y.; Ma, C. L.; Cao, M. X.; Liu, H.; Tan, W. S.] Nanjing Univ Sci & Technol, Dept Appl Phys, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China.

[Tan, W. S.] Hunan City Univ, Coll Commun & Elect Engn, Yiyang 413002, Peoples R China.

[Xu, F.] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China.

[Jia, Q. J.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.

通讯机构：

[Wang, H. O.; Tan, W. S.] H

[Tan, W. S.] N

Hangzhou Dianzi Univ, Inst Mat Phys, Hangzhou 310018, Zhejiang, Peoples R China.

Nanjing Univ Sci & Technol, Dept Appl Phys, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China.

Hunan City Univ, Coll Commun & Elect Engn, Yiyang 413002, Peoples R China.

语种：

英文

关键词：

Calcium;Magnetoresistance;Manganese oxide;Manganites;Metal insulator transition;Phase separation;Praseodymium;Pulsed laser deposition;Solvents;Temperature;Charge ordering;Low temperatures;Non-uniformities;Percolation models;Research results;Superlattice periods;Transport mechanism;Wide temperature ranges;Enhanced magnetoresistance

期刊：

Journal of Materials Science: Materials in Electronics

ISSN：

0957-4522

年：

2017

卷：

期：

页码：

6233-6238

DOI：

10.1007/s10854-016-6303-6

基金类别：

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11604067, U1332106). We thank colleagues from Beijing Synchrotron Radiation Facility (BSRF) and Shanghai Synchrotron Radiation Facility (SSRF) for their help in HRXRD experiments.

机构署名：

本校为通讯机构

院系归属：

信息与电子工程学院

摘要：

[Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3]20 superlattices were epitaxially fabricated on (001) MgO substrates with 24nm La0.5Ca0.5MnO3 (LCMO) buffer layer by pulsed laser deposition. As the thickness of Pr0.7Sr0.3MnO3 (PSMO) layer and LCMO layer is not identical, non-uniformity in the superlattice period thickness will occur and result in lower metal–insulator transition temperature and larger magnetoresistance (MR) at a wide low-temperature range. Furthermore, the percolation model was used to quantitatively understand the transport mechanism of superl...

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Enhanced magnetoresistance at wide temperature range in [Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3]20 superlattice on (001) MgO

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