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We report on the electric field control of magnetic phase transitiontemperatures in multiferroic Ni3V2O8 thin films. Using magnetizationmeasurements, we find that the phase transition temperature to the cantedantiferromagnetic state is suppressed by 0.2 K in an electric field of 30 MV/m,as compared to the unbiased sample. Dielectric measurements show that thetransition temperature into the magnetic state associated with ferroelectricorder increases by 0.2 K when the sample is biased at 25 MV/m. This electricfield control of the magnetic transitions can be qualitatively understood usinga mean field model incorporating a tri-linear coupling between the magneticorder parameters and spontaneous polarization.

Electric field control of magnetic phase transitions in Ni3V2O8