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.
. [J]. 中国物理快报, 2015, 32(08): 87503-087503.
ZHAO Ke-Han, WANG Yu-Hang, SHI Xiao-Lan, LIU Na, ZHANG Liu-Wan. Ferroelectricity in the Ferrimagnetic Phase of Fe1?xMnxV2O4. Chin. Phys. Lett., 2015, 32(08): 87503-087503.
2015, Vol. 32 
