Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles
Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles
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2012
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Haase, Christian
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Physical Review B ; 85 (2012), 4. - ISSN 1098-0121
Abstract
For clinical hyperthermia treatment the heating efficiency of magnetic nanoparticle ensembles is a crucial element. Using efficient algorithms, this heating is studied numerically with a focus on the effects of dipole-dipole interparticle interactions. For the time evolution of realistically modeled systems an approach based on the Landau-Lifschitz-Gilbert equation of motion with Langevin dynamics is taken. Our results suggest a widely negative influence of dipole-dipole interactions on the heating power of nanoparticles. However, considering ensembles within a fixed, given sample volume an optimal particle density exists. The presented results may have important implications for the medical use of magnetic hyperthermia treatment.
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530 Physics
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dipole-dipole interactions,hyperthermia heating,magnetic nanoparticle ensembles
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HAASE, Christian, Ulrich NOWAK, 2012. Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles. In: Physical Review B. 85(4). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.85.045435BibTex
@article{Haase2012dipol-18540, year={2012}, doi={10.1103/PhysRevB.85.045435}, title={Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles}, number={4}, volume={85}, issn={1098-0121}, journal={Physical Review B}, author={Haase, Christian and Nowak, Ulrich} }
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