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Updated: Mar 30, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Rotational properties of ferromagnetic nanoparticles driven by a precessing magnetic field in a viscous fluid
T V Lyutyy1, S I Denisov1, V V Reva1,2
1Sumy State University, 2 Rimsky-Korsakov Street, UA-40007 Sumy, Ukraine.
Abstract:
We study the deterministic and stochastic rotational dynamics of ferromagnetic nanoparticles in a precessing magnetic field. Our approach is based on the system of effective Langevin equations and on the corresponding Fokker-Planck equation. Two key characteristics of the rotational dynamics, namely the average angular frequency of precession of nanoparticles and their average magnetization, are of interest. Using the Langevin and Fokker-Planck equations, we calculate both analytically and numerically these characteristics in the deterministic and stochastic cases, determine their dependence on the model parameters, and analyze in detail the role of thermal fluctuations.
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