Degenerated nuclear magnetostatic modes in ferromagnets
Abstract
The detailed calculations of dependence of the frequency of oscillations on the external magnetic field and on the shape of ferromagnet sample with interacting electronic and nuclear subsystems were done. Such system possesses a discrete number of eigenfrequencies of precession of magnetization. It is shown that these magnetostatic eigenmodes can be degenerated, i.e. different modes can have the same frequency. The dependence of these degenerated modes on the sample shape is investigated. It is shown that the properties of magnetization precession and even the number of eigenmodes depend on the external magnetic field and on the shape of the sample. These effects may produce specific features on the NMR spectra of magnetic materials.
Supporting agencies: The work was performed within the State contract of the Federal Agency of Scientific Organizations (issue “Spin”, no. AAA-A18-118020290104-2). M.A. Borich acknowledges the support of the Russian sciences foundation, project no. 16-12-10514.
About the Authors
M. A. Borich
Institute of Metal Physics of Ural Branch of RAS; Ural Federal University
Russian Federation
Russian Federation
S. Kovalevskoy 18, Ekaterinburg 620108; Mira 19, Ekaterinburg 620002
S. P. Savchenko
Institute of Metal Physics of Ural Branch of RAS
Russian Federation
Russian Federation
S. Kovalevskoy 18, Ekaterinburg 620108
A. P. Tankeyev
Institute of Metal Physics of Ural Branch of RAS; Ural Federal University
Russian Federation
Russian Federation
S. Kovalevskoy 18, Ekaterinburg 620108; Mira 19, Ekaterinburg 620002
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Review
For citations:
Borich M.A., Savchenko S.P., Tankeyev A.P. Degenerated nuclear magnetostatic modes in ferromagnets. Magnetic Resonance in Solids. 2018;20(1):18104 (8 pp.).
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