Field-Driven Hysteretic and Reversible Resistive Switch at the   Ag-Pr0.7Ca0.3MnO3 Interface
  The hysteretic and reversible polarity-dependent resistive switch driven by electric pulses is studied in both Ag/Pr0.7Ca0.3MnO3/YBa2Cu3O7 sandwiches and single-layer Pr0.7Ca0.3MnO3 strips. The data demonstrate that the switch takes place at the Ag-Pr0.7Ca0.3MnO3 interface. A model, which describes the data well, is proposed. We further suggest that electrochemical diffusion is the cause for the switch. 
A. Baikalov (1), Y. Q. Wang (1), B. Shen (1), B. Lorenz (1), S. Tsui   (1), Y. Y. Sun (1), Y. Y. Xue (1), C. W. Chu (1,2,3) ...