CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Ferroelectricity in the Ferrimagnetic Phase of Fe1?xMnxV2O4 |
ZHAO Ke-Han, WANG Yu-Hang, SHI Xiao-Lan, LIU Na, ZHANG Liu-Wan** |
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084
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Cite this article: |
ZHAO Ke-Han, WANG Yu-Hang, SHI Xiao-Lan et al 2015 Chin. Phys. Lett. 32 087503 |
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Abstract Ferroelectric and magnetic properties of Fe1?xMnxV2O4 (0≤x≤0.5) spinels are investigated on the basis of dielectric, polarization, and susceptibility measurements. Ferroelectric polarization is discovered in collinear ferrimagnetic and Yafet–Kittel magnetic phases for 0.1≤x≤0.4, which can be tuned by a magnetic field. As orbital-active Fe2+ is substituted with Mn2+, ferroelectric polarization decreases for 0≤x≤0.4 and disappears for x=0.5. We propose that the two polar components in ferroelectric polarization originate from the exchange striction mechanism and the spin-current model, respectively.
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Received: 27 April 2015
Published: 02 September 2015
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PACS: |
75.85.+t
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(Magnetoelectric effects, multiferroics)
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75.80.+q
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(Magnetomechanical effects, magnetostriction)
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75.47.Lx
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(Magnetic oxides)
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