TY - JOUR
T1 - Indication for macroscopic quantum tunneling below 10 K in nanostructures of SrRuO 3
AU - Sinwani, Omer
AU - Reiner, James W.
AU - Klein, Lior
PY - 2012/9/17
Y1 - 2012/9/17
N2 - We study magnetization reversal of nanostructures of the itinerant ferromagnet SrRuO 3 (T c∼150K). We find that down to 10K the magnetization reversal is dominated by thermal activation. From 2-10K, the magnetization reversal becomes independent of temperature, raising the possibility for reversal dominated by macroscopic quantum tunneling (MQT). A 10K crossover to MQT is consistent with the extremely large anisotropy field (∼7T) of SrRuO 3.
AB - We study magnetization reversal of nanostructures of the itinerant ferromagnet SrRuO 3 (T c∼150K). We find that down to 10K the magnetization reversal is dominated by thermal activation. From 2-10K, the magnetization reversal becomes independent of temperature, raising the possibility for reversal dominated by macroscopic quantum tunneling (MQT). A 10K crossover to MQT is consistent with the extremely large anisotropy field (∼7T) of SrRuO 3.
UR - http://www.scopus.com/inward/record.url?scp=84866841666&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.86.100403
DO - 10.1103/PhysRevB.86.100403
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SN - 1098-0121
VL - 86
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
M1 - 100403
ER -