Abstract
Metoxy polyethylene glycol (MPEG) coated and uncoated Fe3O4 (SPION) nanoparticles have been investigated by Electron Spin Resonance (ESR) technique at the temperature range between 10–300K. ESR measurements on powdered samples have been carried out by using X-band ESR Bruker EMX spectrometer. A strong and broad single ESR signal has been observed at all temperatures. Temperature dependence of ESR linewidth and resonance field is studied. The linewidth increases and the resonance field decreases by decreasing temperature while the ESR signal intensity remeains almost independent on the temperature. The shift in the resonance field value is a clear indication of the induced field (exchange anisotropy field), causing the frustration (disorder) of any magnetic system. A strong effect of coating on magnetic properties of SPION nanoparticles has been observed as well.
Key words
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
V.I. Nikolaev, T.A. Bushina, K.E. Chan, J. Magn. Magn. Mater. 213 (2000) 213.
Juh-Tzeng Lue, J. Phys. Chem. Solid. 62 (2001) 1599.
R.H. Kodama, J. Magn. Magn. Mater. 200 (1999) 359.
M.F. Hansen, S. Morup, J. Magn. Magn. Mater. 184 (1998) 262.
D.K.Kim, Y.Zhang, J. Kehr, T. Klason, B. Bjelke, M. Muhammed, J. Magn. Magn. Mater. 225 (2001) 256.
D.K. Kim, Ph.D. Thesis, MATCHEM, MET, KTH, 2002.
J. Popplewell, L. Sakhnini, J. Magn. Magn. Mater. 149 (1995) 72.
K. Raj, B. Moskowitz, R. Casciari, J. Magn. Magn. Mater. 149 (1995) 174.
D,K, Kim,Y. Zhang, W. Voit, K.V. Rao, M. Muhammed, J. Magn. Magn. Mater. 225 (2001) 30.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2004 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Köseoğlu, Y., Yıldız, F., Kim, D.K., Muhammed, M., Aktaş, B. (2004). Effect of MPEG Coating on Magnetic Properties of Iron Oxide Nanoparticles: An ESR Study. In: Aktaş, B., Tagirov, L.R., Mikailov, F. (eds) Nanostructured Magnetic Materials and their Applications. NATO Science Series, vol 143. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2200-5_24
Download citation
DOI: https://doi.org/10.1007/978-1-4020-2200-5_24
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-2004-9
Online ISBN: 978-1-4020-2200-5
eBook Packages: Springer Book Archive