Referenced Items are not available for this document.
The authors have prepared nanometer-size magnetite particles in Aerosol OT (AOT)/water/iso-octane water-in-oil (w/o) microemulsions. The sizes of the particles in the colloids were inferred from dynamic light scattering (DLS) and were on the order of one nanometer. Those in dried samples were measured using transmission electron microscopy (TEM) and were 5-20 nm. This implies that aggregation occurs during drying. X-ray diffraction showed that the particles' phase was consistent with magnetite. Magnetic properties were studied using a superconducting quantum interference device (SQUID) magnetometer. The colloids showed a superparamagnetic behavior and the dried samples showed a ferromagnetic behavior, supporting the size measurements using DLS and TEM, respectively
Published in:
Magnetics, IEEE Transactions on
(Volume:28
,
Issue:
5
)
Date of Publication: Sep 1992
- Page(s):
- 3180 - 3182
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 4344259
- Digital Object Identifier :
- 10.1109/20.179751
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Sep 1992
- Sponsored by :
- IEEE Magnetics Society
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