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Structure and magnetic properties of La0.67Sr0.33MnO3 thin films prepared by sol–gel method

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Abstract

La1−xSrxMnO3 (x = 0.33) (LSMO) thin films have been fabricated successfully by sol–gel method on two different types of substrates, Si (111) and SrTiO3 (STO) (001). Microstructure and magnetic properties of LSMO thin films have been investigated. The X-ray diffraction studies of the films confirm the pure phase of the LSMO thin films. In contrast with LSMO thin films on Si substrate, the performances of LSMO on STO substrate are superior both from structural and magnetic properties. For the samples deposited on STO substrate, highly preferred orientation as well as less strain and grain defects was found; in other aspect, the magnetization, the residual and saturation moment value, tended greater while a decreased coercive field required merely (saturation moment value was about five times and coercive field was only about 13 % of those on Si substrate). The Curie temperature of LSMO thin films on Si and STO substrates is estimated to be about 349.7 and 359 K, respectively.

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Acknowledgments

This study was sponsored by State Key Basic Research Program of China (Grant No. 61176011), Changjiang Scholars and Innovative Research Team in University, National Basic Research Project (Grant No. 2013CB922301), Fundamental Research Funds for the Central Universities (ECNU), KLIFMD-2011-06 and PCSIRT.

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Authors and Affiliations

  1. Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, 500 Dongchuan Rd, Shanghai, 200241, People’s Republic of China

    Qing Ren, Yuanyuan Zhang & Xiaodong Tang

  2. Key Laboratory of Inorganic Function Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Rd, Shanghai, 200050, People’s Republic of China

    Ying Chen, Genshui Wang & Xianlin Dong

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  1. Qing Ren
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  2. Yuanyuan Zhang
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  3. Ying Chen
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  4. Genshui Wang
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Correspondence to Yuanyuan Zhang or Xiaodong Tang.

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Ren, Q., Zhang, Y., Chen, Y. et al. Structure and magnetic properties of La0.67Sr0.33MnO3 thin films prepared by sol–gel method. J Sol-Gel Sci Technol 67, 170–174 (2013). https://doi.org/10.1007/s10971-013-3063-0

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