Structural, electronic, and magnetic properties of ferroelectric/dielectric heterostructures

Abstract

We present the results of structural, electronic, and magnetic properties of BaTiO3/LaMnO3 heterostructure by means of first-principles calculations. We demonstrate the possibility of highly conducting layer formation at the heterostructure composed of perovskite ferroelectric BaTiO3 and antiferromagnet manganite LaMnO3. We also analyse magnetic properties and an impact of ferroelectric polarization onto the conducting properties. Experimental results of magnetic field effect on Ba0.8Sr0.2TiO3/LaMnO3 heterostructure are presented as well. Effect of illumination of the Ba0.8Sr0.2TiO3/LaMnO3 heterostructure is also demonstrated.