Effects of particle dipole interaction on the ac magnetically induced heating characteristics of ferrite nanoparticles for hyperthermia

Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3211120

Title:	Effects of particle dipole interaction on the ac magnetically induced heating characteristics of ferrite nanoparticles for hyperthermia
Authors:	Jeun, M. Bae, S. Tomitaka, A. Takemura, Y. Park, K.H. Paek, S.H. Chung, K.-W.
Issue Date:	2009
Citation:	Jeun, M., Bae, S., Tomitaka, A., Takemura, Y., Park, K.H., Paek, S.H., Chung, K.-W. (2009). Effects of particle dipole interaction on the ac magnetically induced heating characteristics of ferrite nanoparticles for hyperthermia. Applied Physics Letters 95 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3211120
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 M Fe2 O4 (M=Mg,Ni) nanoparticles was remarkably increased from 17.6 to 94.7 °C (MgFe2 O4) and from 13.1 to 103.1 °C (NiFe2 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. © 2009 American Institute of Physics.
Source Title:	Applied Physics Letters
URI:	http://scholarbank.nus.edu.sg/handle/10635/82234
ISSN:	00036951
DOI:	10.1063/1.3211120
Appears in Collections:	Staff Publications

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