Stochastic Dynamics of the Nanoparticle Magnetization Driven by a Circularly Polarized Magnetic Field

Author(s) A.Yu. Polyakov , T.V. Lyutyy
Affiliations Sumy State University, 2, Rimsky-Korsakov Street, 40007, Sumy, Ukraine
Issue Volume 2, Year 2010, Number 4
Dates Received 12 November 2010, in final form 29 December 2010
Citation A.Yu. Polyakov, T.V. Lyutyy, J. Nano- Electron. Phys. 2 No4, 100 (2010)
PACS Number(s) 05.10.Ln; 75.50.Tt; 75.75. + a; 75.60. – d
Key words Ferromagnetic nanoparticles, Circularly polarized magnetic field, Stochastic Landau-Lifshitz equation, Switching time.
The results of the numerical study of both circularly polarized magnetic field and thermal fluctuation influence on a uniaxial ferromagnetic nanoparticle are represented in the article. The model of such a system is based on the stochastic Landau-Lifshitz equation. The investigations targeted on the derivation of the optimal switching para-meters for nanoparticle magnetic moment that has two equilibrium states caused by uniaxial anisotropy.