Bipolar resistive switching in Ba$_{0.5}$S$_{r0.5}$Co$_{0.2}$Fe$_{0.8}$O$_{3}$ thin films

POSTER

Abstract

Five-component perovskite Ba0.5Sr0.5Co0.2Fe0.8O3 (BSCFO) thin films are reported to have polarized electrical-pulse-induced resistance (EPIR) change at room temperature. Such an EPIR change is attributed to a combined effect of the resistance change of the Schottky barrier and the oxygen ion/vacancy movement near the interface. In the BSCFO, the lower threshold voltage of the electric pulse that leads to nonvolatile resistive changes is close related to its higher oxygen permeability.

Authors

  • Zhongwen Xing

    • Department of Materials Science and Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China
    • Dept. of Materials Science and Engineering, Nanjing University

  • Naijuan Wu

    • Center for Advanced Materials and Department of Physics, University of Houston

  • Alex Ignatiev

    • Center for Advanced Materials and Department of Physics, University of Houston