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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. 2012, 85(4). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.85.045435

Zusammenfassung

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 Physik

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dipole-dipole interactions, hyperthermia heating, magnetic nanoparticle ensembles

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ISO 690HAASE, Christian, Ulrich NOWAK, 2012. Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles. In: Physical Review B. 2012, 85(4). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.85.045435
BibTex
@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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