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VOLUME 110 (2019) | ISSUE 9 | PAGE 628
Influence of shape effects on the spectrum of spin waves in finite array of ferromagnetic pillars
DOI: 10.1134/S0370274X19210112
Abstract
The frequency characteristics of spin waves excited in the chain of cylindrical ferromagnetic pillars are investigated. The presence of a boundary in the chain and the finite height of the pillars lead to the existence of inhomogeneity of magnetization and effective magnetic fields. Using methods of finite-difference discretization simulation we demonstrated the existence of additional resonant frequencies for the edge modes of spin waves due to the demagnetization of the pillars and dipole-dipole interaction between the pillars of the chain.