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Effect of MPEG Coating on Magnetic Properties of Iron Oxide Nanoparticles: An ESR Study

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Nanostructured Magnetic Materials and their Applications

Part of the book series: NATO Science Series ((NAII,volume 143))

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.

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Author information

Authors and Affiliations

  1. Department of Physics, Fatih University, 34900, Istanbul, Turkey

    Y. Köseoğlu

  2. Gebze Institute of Technology, Kocaeli, Turkey

    F. Yıldız & B. Aktaş

  3. Materials Chemistry Division, Royal Institute of Technology, Stockholm, Sweden

    D. K. Kim & M. Muhammed

Authors
  1. Y. Köseoğlu
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  2. F. Yıldız
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  3. D. K. Kim
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  4. M. Muhammed
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  5. B. Aktaş
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Editor information

Editors and Affiliations

  1. Gebze Institute of Technology, P.O. 141, 41400, Gebze Kocaeli, Turkey

    Bekir Aktaş

  2. Kazan State University, 420008, Kazan, Russian Federation

    Lenar R. Tagirov

  3. Institute of Physics of NAS, Baku, Azerbaijan

    Faik Mikailov

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© 2004 Springer Science+Business Media Dordrecht

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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

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  • 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

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