R. L. Stamps and K. D. Usadel 2006 Europhys. Lett. 74 512 doi:10.1209/epl/i2005-10553-8
R. L. Stamps1 and K. D. Usadel2
Show affiliationsThe phenomenon of exchange anisotropy is well known in terms of static magnetization properties such as enhanced coercivity and magnetization loop shifts. These effects are primarily associated with effective anisotropies introduced into a ferromagnet by exchange coupling with a strongly anisotropic antiferromagnet. These effective anisotropies can be understood as manifestations of a more fundamental exchange-induced susceptibility. We show that a consequence of this view is that a class of unusual dynamic effects associated with the exchange susceptibility should also exist. The effects become apparent near the ordering temperature of the antiferromagnet and affect domain wall velocities, domain wall resonances, and precessional switching of the ferromagnet.
75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures)
75.60.-d Domain effects, magnetization curves, and hysteresis
Issue 3 (May 2006)
Received 30 November 2005, accepted for publication 3 March 2006, in final form 3 March 2006
Published 29 March 2006
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