Single-domain wall propagation and damping mechanism during magnetic switching of bistable amorphous microwires.
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.
Varga
R
R
Instituto de Ciencia de Materiales, CSIC, 28049 Madrid, Spain.
Garcia
K L
KL
Vázquez
M
M
Vojtanik
P
P