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Separation of Curie temperature and insulator-metal transition temperature in the La0.7Sr0.3MnO3 polycrystalline films and its effect on low field magnetoresistance
Wu, Yingjie; Ning, Xingkun; Wang, Zhanjie; Wang, Qiang; Zhang, Zhidong; wangzj@imr.ac.cn
2016
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume667Pages:317-322
AbstractThe polycrystalline La0.7Sr0.3MnO3 films were deposited on SiO2/Si substrates by pulsed laser deposition (PLD), and the temperature gap between Curie temperature (T-C) and insulator-metal transition temperature (T-IM) was tuned successfully by the deposition temperature and its influence on the LFMR properties was investigated. The results showed that the T-C was sensitive to the Mn3+/Mn4+ ratios, whereas the T-IM was sensitive to the microstructures in the LSMO films. The LFMR properties of the LSMO films were enhanced with increasing the Delta T values (Delta T = T-C - T-IM). Our results provide an effective way to modulate the functional properties of LSMO films by modulating the temperature gap between T-C and T-IM. (C) 2016 Elsevier B.V. All rights reserved.
description.department[wu, yingjie ; wang, zhanjie] northeastern univ, sch met & mat, shenyang 110819, peoples r china ; [wu, yingjie ; ning, xingkun ; wang, zhanjie ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [wang, zhanjie ; wang, qiang] northeastern univ, minist educ, key lab electromagnet proc mat, shenyang 110819, peoples r china
KeywordLa0.7sr0.3mno3 Films Pulsed Laser Deposition Microstructures mn3+/mn4+ Ratios Low Field Magnetoresistance
Funding OrganizationHundred Talents Program of the Chinese Academy of Sciences; National Natural Science Foundation of China [51172238]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75112
Collection中国科学院金属研究所
Corresponding Authorwangzj@imr.ac.cn
Recommended Citation
GB/T 7714
Wu, Yingjie,Ning, Xingkun,Wang, Zhanjie,et al. Separation of Curie temperature and insulator-metal transition temperature in the La0.7Sr0.3MnO3 polycrystalline films and its effect on low field magnetoresistance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,667:317-322.
APA Wu, Yingjie,Ning, Xingkun,Wang, Zhanjie,Wang, Qiang,Zhang, Zhidong,&wangzj@imr.ac.cn.(2016).Separation of Curie temperature and insulator-metal transition temperature in the La0.7Sr0.3MnO3 polycrystalline films and its effect on low field magnetoresistance.JOURNAL OF ALLOYS AND COMPOUNDS,667,317-322.
MLA Wu, Yingjie,et al."Separation of Curie temperature and insulator-metal transition temperature in the La0.7Sr0.3MnO3 polycrystalline films and its effect on low field magnetoresistance".JOURNAL OF ALLOYS AND COMPOUNDS 667(2016):317-322.
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