Single-domain wall propagation and damping mechanism during magnetic switching of bistable amorphous microwires.

@article{Varga2005SingledomainWP,
  title={Single-domain wall propagation and damping mechanism during magnetic switching of bistable amorphous microwires.},
  author={Richard S. Varga and Karla L Garcia and M{\'o}nica V{\'a}zquez and P. Vojtanik},
  journal={Physical review letters},
  year={2005},
  volume={94 1},
  pages={017201}
}
The mechanism of nucleation and propagation of a single-domain wall is studied as a function of temperature in bistable Fe-based amorphous microwire with a unique simple domain structure. An extended nucleation-propagation model is proposed with a negative nucleation field. From quantitative analysis of the propagating wall characteristics, a new damping is theoretically introduced as arising from structural relaxation which dominates in the low temperature regime.