Ferromagnetic resonance spectra of linear magnetosome chains
The ferromagnetic resonance (FMR) spectra of oriented and non-oriented assemblies of linear magnetosome chains are calculated by solving the stochastic Landau–Lifshitz equation. The dependence of the shape of the FMR spectrum of a dilute assembly of chains on the particle diameter, the number of par...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2024-02-01
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| Series: | Beilstein Journal of Nanotechnology |
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| Online Access: | https://doi.org/10.3762/bjnano.15.15 |
| _version_ | 1827329493585362944 |
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| author | Elizaveta M. Gubanova Nikolai A. Usov |
| author_facet | Elizaveta M. Gubanova Nikolai A. Usov |
| author_sort | Elizaveta M. Gubanova |
| collection | DOAJ |
| description | The ferromagnetic resonance (FMR) spectra of oriented and non-oriented assemblies of linear magnetosome chains are calculated by solving the stochastic Landau–Lifshitz equation. The dependence of the shape of the FMR spectrum of a dilute assembly of chains on the particle diameter, the number of particles in a chain, the distance between the centers of neighboring particles, the mutual orientation of the cubic axes of particle anisotropy, and the value of the magnetic damping constant is studied. It is shown that FMR spectra of non-oriented chain assemblies depend on the average particle diameter at a fixed thickness of the lipid magnetosome membrane, as well as on the value of the magnetic damping constant. At the same time, they are practically independent of the number Np of particles in the chain under the condition Np ≥ 10. The FMR spectra of non-oriented assemblies of magnetosome chains are compared with that of random clusters of interacting spherical magnetite nanoparticles. The shape of FMR spectra of both assemblies is shown to differ appreciably even at sufficiently large values of filling density of random clusters. |
| first_indexed | 2024-03-07T15:41:35Z |
| format | Article |
| id | doaj.art-5b47ea3f923544a2ab1d1c417883e71b |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-03-07T15:41:35Z |
| publishDate | 2024-02-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-5b47ea3f923544a2ab1d1c417883e71b2024-03-05T08:45:37ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862024-02-0115115716710.3762/bjnano.15.152190-4286-15-15Ferromagnetic resonance spectra of linear magnetosome chainsElizaveta M. Gubanova0Nikolai A. Usov1National Research Nuclear University “MEPhI”, 115409, Moscow, Russia National Research Nuclear University “MEPhI”, 115409, Moscow, Russia The ferromagnetic resonance (FMR) spectra of oriented and non-oriented assemblies of linear magnetosome chains are calculated by solving the stochastic Landau–Lifshitz equation. The dependence of the shape of the FMR spectrum of a dilute assembly of chains on the particle diameter, the number of particles in a chain, the distance between the centers of neighboring particles, the mutual orientation of the cubic axes of particle anisotropy, and the value of the magnetic damping constant is studied. It is shown that FMR spectra of non-oriented chain assemblies depend on the average particle diameter at a fixed thickness of the lipid magnetosome membrane, as well as on the value of the magnetic damping constant. At the same time, they are practically independent of the number Np of particles in the chain under the condition Np ≥ 10. The FMR spectra of non-oriented assemblies of magnetosome chains are compared with that of random clusters of interacting spherical magnetite nanoparticles. The shape of FMR spectra of both assemblies is shown to differ appreciably even at sufficiently large values of filling density of random clusters.https://doi.org/10.3762/bjnano.15.15chains of magnetosomesferromagnetic resonance spectramagnetite nanoparticlesnumerical simulation |
| spellingShingle | Elizaveta M. Gubanova Nikolai A. Usov Ferromagnetic resonance spectra of linear magnetosome chains Beilstein Journal of Nanotechnology chains of magnetosomes ferromagnetic resonance spectra magnetite nanoparticles numerical simulation |
| title | Ferromagnetic resonance spectra of linear magnetosome chains |
| title_full | Ferromagnetic resonance spectra of linear magnetosome chains |
| title_fullStr | Ferromagnetic resonance spectra of linear magnetosome chains |
| title_full_unstemmed | Ferromagnetic resonance spectra of linear magnetosome chains |
| title_short | Ferromagnetic resonance spectra of linear magnetosome chains |
| title_sort | ferromagnetic resonance spectra of linear magnetosome chains |
| topic | chains of magnetosomes ferromagnetic resonance spectra magnetite nanoparticles numerical simulation |
| url | https://doi.org/10.3762/bjnano.15.15 |
| work_keys_str_mv | AT elizavetamgubanova ferromagneticresonancespectraoflinearmagnetosomechains AT nikolaiausov ferromagneticresonancespectraoflinearmagnetosomechains |