Issue |
EPL
Volume 118, Number 3, May 2017
|
|
---|---|---|
Article Number | 37001 | |
Number of page(s) | 5 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/118/37001 | |
Published online | 26 June 2017 |
Dzyaloshinskii-Moriya interaction of polar magnet Fe2Mo3O8 and its multiferroicity
School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology - Wuhan 430074, China
(a) guoying_gao@hust.edu.cn (corresponding author)
(b) klyao@hust.edu.cn (corresponding author)
Received: 13 February 2017
Accepted: 6 June 2017
We propose a theoretical model with Dzyaloshinskii-Moriya interaction for the polar magnet Fe2Mo3O8. Via Wigner-Jordan transformation, the electric polarization Px and the magnetization M formula are obtained. Combined with the Green's function equation of motion method, we show that the electric polarization can be induced by a magnetic ordering and manipulated by a magnetic field. There exist structural and metamagnetic transitions in the Fe2Mo3O8 system, which is in agreement with the experimental results.
PACS: 75.85.+t – Magnetoelectric effects, multiferroics / 75.50.Ee – Antiferromagnetics / 05.70.Fh – Phase transitions: general studies
© EPLA, 2017
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