Electric field tuning resistance switching behavior of SrRuO₃/Pb(Mg_1/3Nb_2/3)O₃–PbTiO₃ heterostructures at various temperatures

The resistance switching behavior induced by in-plane read current in SrRuO₃/Pb(Mg_1/3Nb_2/3)O₃–PbTiO₃ heterostructures is investigated at different temperatures. With decreasing in-plane read current from 10 mA to 0.01 mA, the symmetrical butterfly - like shape of resistance is gradually converted to an antisymmetrical shape at different temperatures, which is resulted from the enhancement of polarization current effect. Specifically, non-volatile resistance behaviors induced by asymmetric bipolar sweeping of electric field and pulsed electric field are achieved at different temperatures. Our results suggests resistance switching behavior dependence of in-plane read current, which is crucial for further application of complex oxide magnetoelectric and spintronic devices. (paper)