title: Improved efficiency of heat generation in nonlinear dynamics of magnetic nanoparticles.
abstract: The deterministic Landau-Lifshitz-Gilbert equation has been used to investigate the nonlinear dynamics of magnetization and the specific loss power in magnetic nanoparticles with uniaxial anisotropy driven by a rotating magnetic field. We propose a new type of applied field, which is "simultaneously rotating and alternating," i.e., the direction of the rotating external field changes periodically. We show that a more efficient heat generation by magnetic nanoparticles is possible with this new type of applied field and we suggest its possible experimental realization in cancer therapy which requires the enhancement of loss energies.
authors: University of Debrecen, H-4010 Debrecen P. O. Box 105, Hungary.|Institute of Nuclear Research, P. O. Box 51, H-4001 Debrecen, Hungary.
authors: J
authors: J
authors: Rácz
authors: MTA-DE Particle Physics Research Group, H-4010 Debrecen P. O. Box 105, Hungary.
authors: P F
authors: PF
authors: de Châtel
authors: University of Debrecen, H-4010 Debrecen P. O. Box 105, Hungary.
authors: I A
authors: IA
authors: Szabó
authors: Department of Theoretical Physics and MTA-BME Condensed Matter Research Group, Budapest University of Technology and Economics, H-1111 Budapest Budafoki 8., Hungary.
authors: L
authors: L
authors: Szunyogh
authors: Institute of Nuclear Research, P. O. Box 51, H-4001 Debrecen, Hungary.|MTA-DE Particle Physics Research Group, H-4010 Debrecen P. O. Box 105, Hungary.
authors: I
authors: I
authors: Nándori
mesh_terms: D016880:Anisotropy; D006358:Hot Temperature / Q000627:therapeutic use; D006979:Hyperthermia, Induced / Q000379:methods; D060526:Magnetic Fields; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D008962:Models, Theoretical; D009369:Neoplasms / Q000628:therapy; D017711:Nonlinear Dynamics; D010507:Periodicity; D012399:Rotation
chemical_list: D058185:Magnetite Nanoparticles