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

Cited 73 time in Web of Science Cited 77 time in Scopus
Authors
Jeun, Minhong; Bae, Seongtae; Tomitaka, Asahi; Takemura, Yasushi; Paek, Sun Ha; Chung, Kyung-Won; Park, Ki Ho
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
URI
https://hdl.handle.net/10371/77033
DOI
https://doi.org/10.1063/1.3211120
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College of Medicine/School of Medicine (의과대학/대학원)Neurosurgery (신경외과학전공)Journal Papers (저널논문_신경외과학전공)
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