CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Emergent ferroelectricity in disordered tri-color multilayer structure comprised of ferromagnetic manganites |
Li-Wei Niu(牛利伟), Chang-Le Chen(陈长乐), Xiang-Lei Dong(董祥雷), Hui Xing(邢辉), Bing-Cheng Luo(罗炳成), Ke-Xin Jin(金克新) |
The Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Northwestern Polytechnical University, Xi'an 710129, China |
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Abstract Multiferroic materials, showing the coexistence and coupling of ferroelectric and magnetic orders, are of great technological and fundamental importance. However, the limitation of single phase multiferroics with robust magnetization and polarization hinders the magnetoelectric effect from being applied practically. Magnetic frustration, which can induce ferroelectricity, gives rise to multiferroic behavior. In this paper, we attempt to construct an artificial magnetically frustrated structure comprised of manganites to induce ferroelectricity. A disordered stacking of manganites is expected to result in frustration at interfaces. We report here that a tri-color multilayer structure comprised of non-ferroelectric La0.9Ca0.1MnO3(A)/Pr0.85Ca0.15MnO3(B)/Pr0.85Sr0.15MnO3(C) layers with the disordered arrangement of ABC-ACB-CAB-CBA-BAC-BCA is prepared to form magnetoelectric multiferroics. The multilayer film exhibits evidence of ferroelectricity at room temperature, thus presenting a candidate for multiferroics.
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Received: 29 March 2016
Revised: 25 May 2016
Accepted manuscript online:
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PACS:
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77.55.Nv
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(Multiferroic/magnetoelectric films)
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71.55.Jv
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(Disordered structures; amorphous and glassy solids)
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77.80.-e
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(Ferroelectricity and antiferroelectricity)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61471301, 61078057, 51172183, 51402240, and 51471134), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20126102110045), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2015JQ5125), and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102015ZY078). |
Corresponding Authors:
Chang-Le Chen
E-mail: chenchl@nwpu.edu.cn
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Cite this article:
Li-Wei Niu(牛利伟), Chang-Le Chen(陈长乐), Xiang-Lei Dong(董祥雷), Hui Xing(邢辉), Bing-Cheng Luo(罗炳成), Ke-Xin Jin(金克新) Emergent ferroelectricity in disordered tri-color multilayer structure comprised of ferromagnetic manganites 2016 Chin. Phys. B 25 107701
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