Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1798203 | Journal of Magnetism and Magnetic Materials | 2016 | 6 Pages |
Abstract
Dynamic magnetization response of the axially magnetized ferromagnetic stripe with trapezoidal cross section has been studied. The stripe with beveled edges exhibits multiple resonant peaks modes under an in-plane microwave excitation compared with the single resonant of vertical edge surfaces. The complexity of the observed response is attributed to the spatially nonuniform equilibrium spin distribution at the stripe edges. Micromagnetic simulations identify spin waves as spatially localized mode at the modified edges. This one is also described by effective pinning boundary conditions taking into account finite-size effects, which is related to the exchange interaction, surface anisotropy and dipole-dipole interaction. These results provide detailed insights into the nonlinear spin dynamics of microstructures influenced by the edge properties.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Mei Bi, Xin Wang, Haipeng Lu, Li Zhang, Longjiang Deng, Jianliang Xie,