Shi-Zeng Lin, Lev N. Bulaevskii, Cristian D. Batista
In ferromagnetic superconductors vortices attract each other at large
distances due to the polarization of the magnetic moments. At a low vortex
density, vortex clusters are then stabilized in the ground state. The motion of
vortex clusters driven by the Lorentz force excites magnons. These magnon
excitations become unstable at a threshold velocity above which domain walls
are generated for a slow relaxation of the magnetic moments. The vortex
configuration becomes modulated by the domain walls. This underlying dynamics
of vortices and magnetic moments can be probed by transport measurements.
View original:
http://arxiv.org/abs/1201.4195
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