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Microwave-hydrothermal synthesis of γ-Fe2O3 nanoparticles and their magnetic properties
被引:137
|作者:
Sreeja, V.
[1
]
Joy, P. A.
[1
]
机构:
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
关键词:
A. magnetic materials;
A;
nanostructures;
oxides;
B. chemical synthesis;
D. magnetic properties;
D O I:
10.1016/j.materresbull.2006.11.014
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Nanosized gamma-Fe2O3 is synthesized by the microwave-hydrothermal method. Powder X-ray diffraction and transmission electron microscopic studies showed that the average particle size is 10 nm. Magnetic studies reveal that the gamma-Fe2O3 nanoparticles are superparamagnetic at room temperature, with a superparamagnetic blocking temperature of 200 K. The magnetic characteristics of the nanoparticles indicate their strongly interacting nature. (C) 2006 Elsevier Ltd. All rights reserved.
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页码:1570 / 1576
页数:7
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