Effective Landau-Lifshitz-Gilbert Equation for a Conducting Nanoparticle
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Effective Landau-Lifshitz-Gilbert Equation for a Conducting Nanoparticle
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| Creator |
Денисов, Станіслав Іванович
Денисов, Станислав Иванович Denysov, Stanislav Ivanovych Бабич, Ганна Валеріївна Бабич, Анна Валерьевна Babych, Hanna Valeriivna Денисова, Людмила Анатоліївна Денисова, Людмила Анатольевна Denysova, Liudmyla Anatoliivna Peredriy, Ye.A. |
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| Subject |
Ferromagnetic nanoparticles
Eddy currents Magnetization dynamics Conduction effects |
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| Description |
We study the role of conductivity in the magnetization dynamics of single-domain ferromagnetic particles. Our approach is based on the coupled system of Maxwell’s and Landau-Lifshitz-Gilbert (LLG) equations that describes both the induced electromagnetic field and the magnetization dynamics. We show that the effective LLG equation for a conducting particle contains two additional terms compared to the ordinary LLG equation. One of these terms accounts for the magnetic field of eddy currents induced by an external magnetic field, and the other is magnetization dependent and is responsible for the conductivity contribution to the damping parameter. By analytically solving Maxwell’s equations, we determine this contribution and demonstrate the importance of conduction effects for large nanoparticles. |
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| Publisher |
Sumy State University
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| Date |
2014-05-29T07:05:07Z
2014-05-29T07:05:07Z 2012 |
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| Type |
Article
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| Identifier |
Effective Landau-Lifshitz-Gilbert Equation for a Conducting Nanoparticle / S. I. Denisov, H. V. Babych, L. A. Denisova, Y. A. Peredriy
// Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No4. - 04MFPN13
http://essuir.sumdu.edu.ua/handle/123456789/35362 |
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| Language |
en
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