Bloch Wall Dynamic Instability and Wall Multiplication in Amorphous Ribbons of Metglas 2605 Sc
نویسندگان
چکیده
The theoretical results concerning the calculation of the critical speed at which a Bloch wall becomes unstable under the action of a driving field and the eddy currents field are compared with the experimental ones obtained on a strip of Metglas 2605 SC characterized by a well defined structure of antiparallel domains. A good agreement is obtained by assuming a value of 0.97 x ~ / m ~ for the wall surface energy yo. This method, which is based on direct experimental results, seems to be a simple and reliable way to obtain rather accurate values of yo in amorphous alloys.
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