2015/02/14 by T. V. Lyutyy, S. I. Denisov, A. Yu. Peletskyi +2
Engineering · Physics and Astronomy · #Amplitude #Characterization and Applications of Magnetic Nanoparticles #Classical mechanics #Condensed matter physics #Dissipation #Ferromagnetism #Field (mathematics) #Landau–Lifshitz–Gilbert equation #Larmor precession #Magnetic domain #Magnetic field #Magnetic moment #Magnetic nanoparticles #Magnetic properties of thin films #Magnetization #Magnetization dynamics #Moment (physics) #Nanoparticle #Physics #Precession #Quantum mechanics #Theoretical and Computational Physics #cond-mat.mes-hall #cond-mat.soft
paper · pdf · doi:10.1103/physrevb.91.054425
published as Phys. Rev. B 91, 054425 (2015) · 20 pages, 7 figures
arxiv created 2015/02/14 · openalex publication_date 2015/02/26 · arxiv updated 2015/02/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study, both analytically and numerically, the phenomenon of energy dissipation in single-domain ferromagnetic nanoparticles driven by an alternating magnetic field. Our interest is focused on the power loss resulting from the Landau-Lifshitz-Gilbert equation, which describes the precessional motion of the nanoparticle magnetic moment. We determine the power loss as a function of the field amplitude and frequency and analyze its dependence on different regimes of forced precession induced by circularly and linearly polarized magnetic fields. The conditions to maximize the nanoparticle heating are also analyzed.