DocumentCode :
1504041
Title :
Self-Controlled Hyperthermia Characteristics of ZnGdFe Nanoparticles
Author :
Hejase, Hassan A. ; Hayek, Saleh S. ; Qadri, Shahnaz M. ; Haik, Yousef S.
Author_Institution :
Dept. of Electr. Eng., United Arab Emirates Univ., Al Ain, United Arab Emirates
Volume :
48
Issue :
9
fYear :
2012
Firstpage :
2430
Lastpage :
2439
Abstract :
We report self-controlled heating temperature rising characteristics of gadolinium-substituted zinc iron ferrite magnetic nanoparticles. ZnGdFe2O 3 nanoparticles were synthesized chemically by a co-precipitation process for application as hyperthermia inducing agents. The structure, morphology and magnetic properties of the nanoparticles were characterized using scanning electron microscope, X-ray diffractometer, and superconducting quantum interference device. The magnetic properties investigated included Curie temperature Tc, saturation magnetization Ms, remanent magnetization Mr, coercive field Hc, and hysteresis. It was observed from the study of the synthesized ZnGd ferrite nanoparticles that addition of Gd resulted in an increase in nanoparticles system´s overall Curie temperature as well as its pyromagnetic coefficient.
Keywords :
Curie temperature; X-ray diffraction; coercive force; ferrites; gadolinium compounds; heat treatment; hyperthermia; magnetic hysteresis; magnetocaloric effects; nanobiotechnology; nanofabrication; nanomagnetics; nanoparticles; precipitation (physical chemistry); remanence; scanning electron microscopy; zinc compounds; Curie temperature; X-ray diffractometer; ZnGdFe2O3; coercive field; coprecipitation process; gadolinium-substituted zinc iron ferrite magnetic nanoparticle synthesis; hyperthermia agents; magnetic hysteresis; magnetic properties; morphological properties; pyromagnetic coefficient; remanent magnetization; saturation magnetization; scanning electron microscope; self-controlled heating temperature; self-controlled hyperthermia characteristics; structural properties; superconducting quantum interference device; Heating; Hyperthermia; Lattices; Magnetic hysteresis; Nanoparticles; Saturation magnetization; Zinc; Magnetic hyperthermia; ZnGdFe nanoparticles; pyromagnetic coefficient;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2012.2196284
Filename :
6190743
Link To Document :
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