Estimation of the number of domain walls during flux reversal in 50% Ni-Fe tape cores
- 11 September 1976
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 9 (13) , 1899-1906
- https://doi.org/10.1088/0022-3727/9/13/010
Abstract
Describes a method to estimate the number of domain walls during flux reversal in 50% Ni-Fe tape-wound cores on the assumption that the induced voltage of the magnetic core under the application of an MMF is a function of the number of walls participating in flux reversal. The study shows that the abrupt change of total flux reversal time in the intermediate-field region, where the applied field intensity is several times larger than the coercive force, is attributable to the increase in the number of domain walls with increasing applied field. The flux reversal time calculated on the basis of the estimated number of domain walls and the equation of wall motion agrees well with the observed one.Keywords
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