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Effects of particle dipole interaction on the ac magnetically induced heating characteristics of ferrite nanoparticles for hyperthermia
Cited 77 time in
Web of Science
Cited 84 time in Scopus
- Authors
- Issue Date
- 2009-08-24
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS; Vol.95 8; 082501
- Abstract
- Magnetic particle dipole interaction was revealed as a crucial physical parameter to be considered in optimizing the ac magnetically induced heating characteristics of magnetic nanoparticles. The ac heating temperature of soft MFe(2)O(4) (M=Mg,Ni) nanoparticles was remarkably increased from 17.6 to 94.7 degrees C (MgFe(2)O(4)) and from 13.1 to 103.1 degrees C (NiFe(2)O(4)) by increasing the particle dipole interaction energy at fixed ac magnetic field of 140 Oe and frequency of 110 kHz. The increase in "magnetic hysteresis loss" that resulted from the particle dipole interaction was the main physical reason for the significant improvement of ac heating characteristics.
- ISSN
- 0003-6951
- Language
- English
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