1202.5499 (A. D. Belanovsky et al.)

Phase locking dynamics of dipolarly coupled vortex-based spin transfer
oscillators    [PDF]

A. D. Belanovsky, N. Locatelli, P. N. Skirdkov, F. Abreu Araujo, J. Grollier, K. A. Zvezdin, V. Cros, A. K. Zvezdin

Phase locking dynamics of dipolarly coupled vortices excited by
spin-polarized current in two identical nanopillars is studied as a function of
the interpillar distance L. Numerical study and analytical model have proved
the remarkable efficiency of magneto-static interaction to achieve phase
locking. Investigating the dynamics in the transient regime towards phase
locking, we extract the evolution of the locking time \tau, the coupling
strength {\mu} and the interaction energy W. Finally, we compare this coupling
energy with the one obtained by simple model.

View original: http://arxiv.org/abs/1202.5499