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) |
|---|---|
| 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.