Micromagnetic calculation of spin transfer torque in Co/Cu multilayer nanowires

作者：Hernandez Stephanie; Tan Liwen; Stadler Bethanie J H; Victora R H^*

来源：Journal of Applied Physics, 2011, 109(7): 07C916.

DOI：10.1063/1.3562924

An approach for calculating spin transfer torque including interfacial scattering effects in structures consisting of multiple ferromagnet/nonmagnet (FM/NM) bilayers was developed. Using this approach, a micromagnetic analysis on structures consisting of six magnetic layers was compared to electrical measurements on electrodeposited Co/Cu multilayered nanowires. Good agreement with experiment was achieved if it was assumed that one of the layers is magnetically fixed. An array of 16 wires, each consisting of 6 FM/NM bilayers, was also micromagnetically modeled and compared to a similar experimental measurement. Both results confirm that including a wide distribution of wires results in a less uniform switching mechanism.

• 出版日期2011-4-1