Abstract
An intrinsic mechanism of nonlinear ferromagnetic relaxation in thin metallic films was proposed. Using analytic theory as well as micromagnetic simulations, it was shown that the four-magnon scattering process was responsible for a rapid decay of the k=0 mode into k ≠ 0 magnons. This mechanism dominates competing linear relaxation mechanisms and governs large angle magnetization reversal in technologically important systems.
Original language | English (US) |
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Article number | 167203 |
Pages (from-to) | 167203/1-167203/4 |
Number of pages | 1 |
Journal | Physical Review Letters |
Volume | 90 |
Issue number | 16 |
DOIs | |
State | Published - Apr 25 2003 |
Bibliographical note
Funding Information:This work was supported by the NSF through the MRSEC program, Grant No. NSF/DMR-9809364, and by the University of Minnesota Supercomputing Institute.