Self-consistent solution of magnetic and friction energy losses of a magnetic nanoparticle
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Self-consistent solution of magnetic and friction energy losses of a magnetic nanoparticle
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| Автор |
Helbig, S.
Abert, C. Sánchez, P. A. Kantorovich, S. S. Suess, D. |
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| Тематика |
ENERGY DISSIPATION
FRICTION NANOMAGNETICS PARTICLE SIZE ANALYSIS A-PARTICLES ALTERNATING MAGNETIC FIELD FRICTION ENERGY FRICTIONAL LOSS MAGNETIC ENERGIES SELF-CONSISTENT SOLUTION SIMPLE++ SIMULATION MODEL STEADY STATE VISCOUS FLUIDS PARTICLE SIZE |
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| Описание |
We present a simple simulation model for analyzing magnetic and frictional losses of magnetic nanoparticles in viscous fluids subject to alternating magnetic fields. Assuming a particle size below the single-domain limit, we use a macrospin approach and solve the Landau-Lifshitz-Gilbert equation coupled to the mechanical torque equation. Despite its simplicity the presented model exhibits surprisingly rich physics and enables a detailed analysis of the different loss processes depending on field parameters and initial arrangement of the particle and the field. Depending on those parameters regions of different steady states emerge: a region with dominating magnetic relaxation and high magnetic losses and another region region with high frictional losses at low fields or low frequencies. The energy increases continuously even across regime boundaries up to frequencies above the viscous relaxation limit. At those higher frequencies the steady state can also depend on the initial orientation of the particle in the external field. The general behavior and special cases and their specific absorption rates are compared and discussed. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Austrian Science Fund, FWF: 33748; Russian Science Foundation, RSF; European Regional Development Fund, ERDF; Universitat de les Illes Balears, UIB The authors wish to thank the “FWF - Der Wissenschaftsfonds” for funding under the Project No. P 33748 and the Vienna Scientific Cluster (VSC) for providing the necessary computational resources. We acknowledge financial support by the Vienna Doctoral School in Physics (VDSP). P.A.S. acknowledges support from the project “Computer modeling of magnetic nanosorbents”, funded by the University of the Balearic Islands and the European Regional Development Fund. This research has been partially performed in the framework of the RSF Project No.19-12-00209. |
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| Дата |
2024-04-05T16:17:22Z
2024-04-05T16:17:22Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Helbig, S, Abert, C, Sánchez, PA, Kantorovich, SS & Suess, D 2023, 'Self-consistent solution of magnetic and friction energy losses of a magnetic nanoparticle', Physical Review B, Том. 107, № 5, 054416. https://doi.org/10.1103/PhysRevB.107.054416
Helbig, S., Abert, C., Sánchez, P. A., Kantorovich, S. S., & Suess, D. (2023). Self-consistent solution of magnetic and friction energy losses of a magnetic nanoparticle. Physical Review B, 107(5), [054416]. https://doi.org/10.1103/PhysRevB.107.054416 2469-9950 Final All Open Access, Hybrid Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149791779&doi=10.1103%2fPhysRevB.107.054416&partnerID=40&md5=74ce98d5b7c1c2fcff2b34c227d96d77 http://link.aps.org/pdf/10.1103/PhysRevB.107.054416 http://elar.urfu.ru/handle/10995/130268 10.1103/PhysRevB.107.054416 85149791779 000943089300004 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//19-12-00209
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
American Physical Society
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| Источник |
Physical Review B
Physical Review B |
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