Energy dissipation in single-domain ferromagnetic nanoparticles: Dynamical approach

Abstract

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.

20 pages, 7 figures

References in corpus (8)

• Spintronics: Fundamentals and applications
• Increase of magnetic hyperthermia efficiency due to dipolar interactions in low anisotropy magnetic nanoparticles : theoretical and experimental results
• A comparative study of computation of Lyapunov spectra with different algorithms
• Magnetization reversal through synchronization with a microwave
• Dynamical and thermal effects in nanoparticle systems driven by a rotating magnetic field
• Magnetic particle hyperthermia: Power losses under circularly polarized field in anisotropic nanoparticles
• Resonant suppression of thermal stability of the nanoparticle magnetization by a rotating magnetic field
• Eddy current effects in the magnetization dynamics of ferromagnetic metal nanoparticles

Cited by in corpus (13)

• Dynamics of magnetic single domain particles embedded in a viscous liquid
• Experimental determination of the frequency and field dependence of Specific Loss Power in Magnetic Fluid Hyperthermia
• Power Loss for a Periodically Driven Ferromagnetic Nanoparticle in a Viscous Fluid: the Finite Anisotropy Aspects
• Energy dissipation of rigid dipoles in a viscous fluid under the action of a time-periodic field: the influence of thermal bath and dipole interaction
• Uniform and Nonuniform Precession of a Nanoparticle with Finite Anisotropy in a Liquid: Opportunities and Limitations for Magnetic Fluid Hyperthermia
• Induced magnetization and power loss for a periodically driven system of ferromagnetic nanoparticles with randomly oriented easy axes
• Improved efficiency of heat generation in nonlinear dynamics of magnetic nanoparticles
• Efficiency of magnetic hyperthermia in the presence of rotating and static fields
• Theory of superlocalized magnetic nanoparticle hyperthermia: rotating versus oscillating fields
• Drift of suspended ferromagnetic particles due to the Magnus effect
• Drift of suspended single-domain nanoparticles in a harmonically oscillating gradient magnetic field
• Dynamics and Energy Dissipation of a Rigid Dipole Driven by the RF-field in a Viscous Fluid: Deterministic Approach
• Polarised superlocalization in magnetic nanoparticle hyperthermia