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Issue 2, 2015
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Low magnetic field response single-phase multiferroics under high temperature

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Abstract

A single-phase material where ferroelectricity and ferromagnetism coexist at room temperature (RT) is hardly available at present, and it is even more rare for such a material to further have an intrinsic and low magnetic field response magnetoelectric (ME) coupling at temperatures higher than RT. In this communication, a new single-phase Aurivillius compound, SrBi5Fe0.5Co0.5Ti4O18 has been discovered that exhibits a plausible intrinsic ME coupling. Remarkably, this property appears at a high temperature of 100 °C, surpassing all single-phase multiferroic materials currently under investigation. With a magnetocapacitance effect detectable at 100 °C and under a low response magnetic field, a RT functioning device was demonstrated to convert an external magnetic field variation directly into an electric voltage output. The availability of such a single-phase material with an intrinsic and low magnetic field response that is multiferroic at high temperature is important to the fundamental understanding of physics and to potential applications in sensing, memory devices, quantum control, etc.

Graphical abstract: Low magnetic field response single-phase multiferroics under high temperature

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The article was received on 18 Oct 2014, accepted on 18 Nov 2014 and first published on 19 Nov 2014


Article type: Communication
DOI: 10.1039/C4MH00202D
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Mater. Horiz., 2015,2, 232-236

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    Low magnetic field response single-phase multiferroics under high temperature

    J. Wang, Z. Fu, R. Peng, M. Liu, S. Sun, H. Huang, L. Li, R. J. Knize and Y. Lu, Mater. Horiz., 2015, 2, 232
    DOI: 10.1039/C4MH00202D

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