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Size and surface effects in the magnetic properties of maghemite and magnetite coated nanoparticles

✍ Scribed by Ortega, D. (author);Vélez-Fort, E. (author);García, D. A. (author);García, R. (author);LitrÁn, R. (author);Barrera-Solano, C. (author);Ramírez-Del-Solar, M. (author);Domínguez, M. (author)

Book ID
121857276
Publisher
Royal Society
Year
2010
Tongue
English
Weight
832 KB
Volume
368
Category
Article
ISSN
0264-3952

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## Abstract Superparamagnetic nanoparticles of magnetite (Fe~3~O~4~) 2 nm in size were produced by a co‐precipitation method. Superparamagnetic resonance (SPR) spectra at room temperature show a broad line with a Landé __g__ ‐factor, __g__ ~eff~ ≈ 2. It was observed that, as the temperature decreas