Magnetocapacitance in La 0.7 Sr 0.3 MnO 3 /Pb(Zr 0.2 Ti 0.8 )O 3 /La 0.7 Sr 0.3 MnO 3 multiferroic heterostructures

Measurements of the magnetocapacitance effect in epitaxial La Sr MnO /Pb(Zr Ti )O /La Sr MnO heterostructures have been performed using a quasi-static method. Through capacitance-voltage measurements carried out under variable magnetic field it has been found that the magneto-capacitance depends on the orientation of the ferroelectric polarization. The value of magneto-capacitance can be as high as 1% in the voltage range near the ferroelectric coercive field. This has been attributed to a variation of the apparent built-in voltage of the PZT-LSMO Schottky barriers on applied magnetic field.