Switching Time of Magnetic Moment Driven by Circularly Polarized Field
The magnetization switching effect of the uniaxial nanoparticle driven by a circularly polarized in the plane perpendicular to the easy axis field in the presence of thermal fluctuations is studied. The frequency dependence of the magnetic moment switching time from one equilibrium state to another...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Sumy State University
2012-10-01
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| Series: | Журнал нано- та електронної фізики |
| Subjects: | |
| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2012/3/articles/jnep_2012_V4_03012.pdf |
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| Summary: | The magnetization switching effect of the uniaxial nanoparticle driven by a circularly polarized in the plane perpendicular to the easy axis field in the presence of thermal fluctuations is studied. The frequency dependence of the magnetic moment switching time from one equilibrium state to another is investigated in details, indicating its resonant character and fundamental dependence on the direction of rotation of the field. The effect of precession mode on switching time is discussed. A comparative analysis of the switching time with a lifetime for precession modes is done in this paper. We study the influence of the damping parameter and the amplitude of the external field on the switching time. |
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| ISSN: | 2077-6772 |