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Heteroepitaxial Pb0.9Sr0.1TiO3/Bi0.9La0.1FeO3/Pb0.9Sr0.1TiO3 multiferroic structure: an effective way to improve the electrical, ferroelectric and magnetic performance

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Abstracts

A ferroelectric/multiferroic structure composed of (Pb0.9Sr0.1)TiO3 (PST) and (Bi0.9La0.1)FeO3 (BLF) was heteroepitaxially deposited on a LaNiO3 buffered (001) SrTiO3 substrate by pulse laser deposition. Interestingly, the PST layer was acting as a buffering layer between BLF and electrode to suppress the migration of free carries in the heterostructure. A well-grown crystalline dense structure was observed from the surface morphology of PST/BLF/PST heterostructure. Moreover, the PST/BLF/PST trilayer exhibited improved ferroelectric and dielectric behaviors, together with two orders of magnitude lower leakage current and higher dielectric constant. Our result indicate that the multiferroic PST/BLF/PST heterostructure may have a promising application for the future high-density memory.

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Acknowledgments

This work was supported by the National Basic Research Program of China (Grant Nos. 2015CB921502, 2012CB932702), the National Science Foundation of China (Grant Nos. 11574027, 51371024, 51325101), NCET13-0665, the Fundamental Research Funds for the Central Universities.

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Q. Liu, J. Miao, F. Shao, Y. Ji, Z. Y. Ren, J. K. Chen, Y. Wu, X. G. Xu, K. K. Meng & Y. Jiang

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  1. Q. Liu
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Correspondence to J. Miao.

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Liu, Q., Miao, J., Shao, F. et al. Heteroepitaxial Pb0.9Sr0.1TiO3/Bi0.9La0.1FeO3/Pb0.9Sr0.1TiO3 multiferroic structure: an effective way to improve the electrical, ferroelectric and magnetic performance. J Mater Sci: Mater Electron 27, 8080–8086 (2016). https://doi.org/10.1007/s10854-016-4807-8

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