Chotorlishvili L., Toklikishvili Z., Sukhov A., Horley P.P., Dugaev V.K., Vieira V.R., Trimper S., and Berakdar J.

We study the role of thermal fluctuations on the spin dynamics of a thin permalloy film with a focus on the behavior of spin torque and find that the thermally assisted spin torque results in new aspects of the magnetization dynamics. In particular, we uncover the formation of a finite, spin torque-induced, in-plane magnetization component. The orientation of the in-plane magnetization vector depends on the temperature and the spin-torque coupling. We investigate and illustrate that the variation of the temperature leads to a thermally induced rotation of the in-plane magnetization.

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