Dipole-exchange spin excitations in a thin ferromagnetic nanoshell

• Authors: Yuri Gorobets , Volodymyr Kulish
• Languages of publication: EN

Abstracts

EN

In this paper spin excitations in spherical ferromagnetic nanoshells are investigated. The magnetic dipoledipole interaction, the exchange interaction and the anisotropy effects are taken into consideration. For such spin excitations, an equation for the magnetic potential perturbation is obtained. For a nanoshell that is thin compared to its size, the dispersion relation for nonzero spin excitation modes and the only possible frequency for zero-mode spin excitations are found. Limitations on the mode numbers are derived.

Keywords

EN

spin excitations; nanomagnetics; ferromagnetic nanoshells; dipole-exchange theory

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2013
• Volume: 11
• Issue: 3
• Pages: 375-379

Dates

published

1 - 3 - 2013

online

28 - 3 - 2013

Contributors

author

Yuri Gorobets

• Institute of Magnetism, National Academy of Sciences of Ukraine, 36-b Vernadskogo st., 03142, Kyiv, Ukraine

author

Volodymyr Kulish

• National Technical University of Ukraine “Kyiv Polytechnic Institute”, 37 Peremogy prosp., 03056, Kyiv, Ukraine

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Identifiers

DOI

10.2478/s11534-013-0172-x