Dynamical and thermal effects in nanoparticle systems driven by a rotating magnetic field
作者： S. I. Denisov , T. V. Lyutyy , P. Hänggi , K. N. Trohidou
DOI: 10.1103/PHYSREVB.74.104406
关键词: Precession 、 Larmor precession 、 Magnetic moment 、 Rotating magnetic field 、 Stability criterion 、 Condensed matter physics 、 Magnetic energy 、 Field (physics) 、 Classical mechanics 、 Magnetization 、 Physics
摘要: We study dynamical and thermal effects that are induced in nanoparticle systems by a rotating magnetic field. Using the deterministic Landau-Lifshitz equation appropriate coordinate systems, we derive equations characterize steady-state precession of moments stability criterion for this type motion. On basis, describe (i) influence field on small-angle precession, (ii) magnetization (iii) switching under action backward Fokker-Planck equation, which corresponds to stochastic develop method calculating mean residence times driven dwell up down states. Within framework, features relaxation elucidated.
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