Thermally assisted current-induced magnetization reversal in SrRuO3

Abstract

We inject a sequence of 1 ms current pulses into uniformly magnetized patterns of the itinerant ferromagnet SrRuO3 until a magnetization reversal is detected. We detect the effective temperature during the pulse and find that the cumulative pulse time τ required to induce magnetization reversal depends exponentially on 1/T . In addition, we find that τ also depends exponentially on the current amplitude. These observations indicate current-induced magnetization reversal assisted by thermal fluctuations.

Temperature induced magnetization reversal in SrRuO3

“…17 Recently, current induced magnetization reversal in SrRuO 3 has stimulated us to investigate temperature driven magnetization reversal. 18 In the present report, SRO shows magnetization reversal phenomenon below Curie temperature at small magnetic field under ZFC mode. Magnetic switching behavior is found in SRO below Curie temperature.…”