Electric and Magneto-Electric Properties of Cr₂O₃ Thin Films

Abstract

C-axis epitaxial Cr₂O₃ thin films were prepared on Pt by radio-frequency (RF) magnetron sputtering method with an in-situ reflection high energy electron diffraction (RHEED) system. Leakage current of Cr₂O₃ which is deposited at 480°C is the lowest and the value shows 10⁻⁶-10⁻⁷ A/cm² order and magnetic hysteresis was observed. This magnetization is induced at Cr₂O₃/Pt interface and this could be due to compressive stress from Pt substrate, and magnetoelectric (ME) effect could be modulated by interaction between interface and Cr₂O₃. [DOI: 10.1380/ejssnt.2014.373]