Magnetic Field Tunable Capacitive Dielectric:Ionic-liquid Sandwich Composites

Abstract

We examined the tunability of the capacitance for GaFeO3-ionic liquid-GaFeO3 composite material by external magnetic and electric field. Up to 1.6 folds of capacitance tunability could be achieved at 957kHz with voltage 4v and magnetic field 0.02T applied. We show that the capacitance enhancement is due to the polarization coupling between dielectric layer and ionic liquid layer.

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