Title :
Remanence curves of longitudinal thin films
Author :
Dean, C. ; Chantrell, R.W. ; Hart, A. ; Parker, D.A. ; Miles, J.J.
Author_Institution :
Sch. of Phys. & Astron., Lancashire Polytech., Preston, UK
fDate :
11/1/1991 12:00:00 AM
Abstract :
A micromagnetic model has been developed which is applied to the calculation of the principal remanence curves of a longitudinal thin film. The isothermal remanent magnetization curve (IRM) relies on the production of a realistic erased state. The authors developed an approach based on simulated annealing which produces a highly correlated demagnetized state. Comparison between the two curves via the Wohlfarth relation shows that the interparticle interactions are predominantly negative in a dipolar coupled thin film, indicating that exchange coupling is necessary in order to explain previously published experimental data
Keywords :
magnetic annealing; magnetic hysteresis; magnetic recording; magnetic thin films; magnetisation; remanence; IRM; Wohlfarth relation; dipolar coupled thin film; erased state; exchange coupling; hysteresis loop; interparticle interactions; isothermal remanent magnetization curve; longitudinal thin film; magnetic recording; micromagnetic model; principal remanence curves; simulated annealing; Artificial intelligence; Astronomy; Magnetic films; Magnetic noise; Magnetization; Micromagnetics; Physics; Remanence; Simulated annealing; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
