Izvorni znanstveni članak
The model for the magnetization of current carrying amorphous ferromagnets
Stjepan Sabolek
; Department of Physics, Faculty of Science, POBox 162, 41000 Zagreb, Croatia
Sažetak
A recent model for the explanation of the decrease of coercive field Hc and the core loss E in amorphous ribbons carrying a direct current Jd has been extended in order to account for the effects of an alternating core current J. The model predicts a linear decrease of Hc with the amplitude J0 of J and the achievement of Hc=0 for J0 which is sufficient in order to release the domain walls responsible for Hc in the absence of the drive field H. The actual shape and frequency of the core current pulses appear to be immaterial as long as the condition J=J0 at H = 0 is fulfilled. The accurate measurements performed on the stress-free Co70.3Fe4.7Si15B10 and twisted Fe80B20 ribbons confirm the validity of the model. Some applications of the phenomenon are briefly discussed.
Ključne riječi
Hrčak ID:
299389
URI
Datum izdavanja:
1.5.1993.
Posjeta: 187 *