Magnetic dynamics with spin transfer torques near the Curie temperature

Details Magnetic dynamics with spin transfer torques near the Curie temperature Magnetic dynamics with spin transfer torques near the Curie temperature

2009-06-12

arxiv.org/abs/0906.2423v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 6 figures

Scientific paper

We use atomistic stochastic Landau-Lifshitz-Slonczewski simulations to study the interaction between large thermal fluctuations and spin transfer torques in the magnetic layers of spin valves. At temperatures near the Curie temperature $T_{\rm C}$, spin currents measurably change the size of the magnetization (i.e. there is a {\it longitudinal} spin transfer effect). The change in magnetization of the free magnetic layer in a spin valve modifies the temperature dependence of the applied field-applied current phase diagram for temperatures near $T_{\rm C}$. These atomistic simulations can be accurately described by a Landau-Lifshitz-Bloch + Slonczewski equation, which is a thermally averaged mean field theory. Both the simulation and the mean field theory show that a longitudinal spin transfer effect can be a substantial fraction of the magnetization close to $T_{\rm C}$.

Affiliated with

Also associated with

No associations

Rating

Magnetic dynamics with spin transfer torques near the Curie temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetic dynamics with spin transfer torques near the Curie temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic dynamics with spin transfer torques near the Curie temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-252063