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Issue 40, 2017
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Intrinsic multiferroics in an individual single-crystalline Bi5Fe0.9Co0.1Ti3O15 nanoplate

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Abstract

In recent years, much attention has been paid to layer-structured Bi4Bim−3Fem−3−xMxTi3O3m+3 (BFMTO, M = Co, Mn) compounds due to their potential as high temperature single phase multiferroic materials. However, BFMTO single crystals have been rarely reported in the past, though they are better candidates for studying the corresponding intrinsic multiferroics as well as the platform for making future devices, due to their structural complexity and difficulties in fabrication. In this article, Bi5Fe0.9Co0.1Ti3O15 single-crystalline nanoplates were synthesized by the hydrothermal method. The ferromagnetic domain structure of the nanoplate was investigated by electron holography. Denser phase contours were observed and the closed magnetic flux lines indicated a significant magnetic interaction between the neighboring nanoplates, which proved the ferromagnetic nature of the sample. Furthermore, MH loops of the sample were also measured, in which the ferromagnetic Curie temperature reached ∼730.2 K. Besides, ferroelectric domains were also detected by using a piezoresponse force microscope. All the above-mentioned results indicate the first verification of the room temperature (RT) multiferroic behaviour in such single crystals, which will be useful for both future devices and understanding the underlining physics.

Graphical abstract: Intrinsic multiferroics in an individual single-crystalline Bi5Fe0.9Co0.1Ti3O15 nanoplate

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Publication details

The article was received on 10 Jun 2017, accepted on 13 Sep 2017 and first published on 14 Sep 2017


Article type: Communication
DOI: 10.1039/C7NR04141A
Citation: Nanoscale, 2017,9, 15291-15297
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    Intrinsic multiferroics in an individual single-crystalline Bi5Fe0.9Co0.1Ti3O15 nanoplate

    T. Chen, D. Meng, Z. Li, J. Chen, Z. Lei, W. Ge, S. Sun, D. Sun, M. Liu and Y. Lu, Nanoscale, 2017, 9, 15291
    DOI: 10.1039/C7NR04141A

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