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A dynamic model of a switching twistor wire segment

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1 Author(s)
Barrett, W. ; Lehigh University, Bethlehem, PA, USA

A semi-empirical differential equation for the local dynamic behavior of a twistor wire is combined with demagnetization equations to yield a set of equations that describe, to the first order, the dynamic switching of a twistor wire segment. The dynamic equation expresses M as a function of M , H , and H , contains several adjustable parameters, and has solutions which agree with most of the observed first-order magnetic switching phenomena. When coupled with the demagnetization equations described in an earlier paper, a complete solution of the average M(z,t) , together with the demagnetizing field Hd(z,t) is readily generated by standard numerical methods. A solution so generated appears to be realistic, though experimental verification has not been attempted.

Published in:

Magnetics, IEEE Transactions on  (Volume:4 ,  Issue: 1 )