Spin Excitations in Dissipative Ferromagnetic Nanoshells
| Authors | V.V. Kulish |
| Affiliations | National Technical University of Ukraine “KPI”, 37, Peremogy prosp., 03056 Kyiv, Ukraine |
| Е-mail | kulish_volv@ukr.net |
| Issue | Volume 8, Year 2016, Number 3 |
| Dates | Received 25 August 2016; published online 03 October 2016 |
| Citation | V.V. Kulish, J. Nano- Electron. Phys. 8 No 3, 03050 (2016) |
| DOI | 10.21272/jnep.8(3).03050 |
| PACS Number(s) | 75.75.Jn, 75.30.Ds, 75.90. + w |
| Keywords | Nanomagnetism, Spin excitation, Ferromagnetic nanoshell, Dissipative effects, Dipole-exchange theory. |
| Annotation | In the paper, dipole-exchange radial-angular spin excitations in a spherical ferromagnetic nanoshell are investigated. For such excitations, a differential equation for the magnetic potential is found, with account for the magnetic dipole-dipole interaction, the exchange interaction, the anisotropy effects and the dissipation. The equation is solved for the three cases – the case of a thin shell, the case of short waves and the case of radial excitations. For each of these cases, the dispersion relation and the spectrum of possible excitation frequencies are found. |
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List of References |
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