Indication for macroscopic quantum tunneling below 10 K in nanostructures of SrRuO3

Omer Sinwani, James W. Reiner, Lior Klein

We study magnetization reversal of nanostructures of the itinerant ferromagnet SrRuO3 (Tc~150 K). We find that down to 10 K the magnetization reversal is dominated by thermal activ…