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Materials 2014, 7(2), 1155-1164; doi:10.3390/ma7021155

Synthesis and Characterization of Holmium-Doped Iron Oxide Nanoparticles

1,* , 1
1 KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium 2 PharmAbs, The KU Leuven Antibody Center, KU Leuven, O&N II, Herestraat 49, Box 824, 3000 Leuven, Belgium
* Author to whom correspondence should be addressed.
Received: 21 November 2013 / Revised: 28 January 2014 / Accepted: 31 January 2014 / Published: 12 February 2014
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Particles 2013)
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Rare earth atoms exhibit several interesting properties, for example, large magnetic moments and luminescence. Introducing these atoms into a different matrix can lead to a material that shows multiple interesting effects. Holmium atoms were incorporated into an iron oxide nanoparticle and the concentration of the dopant atom was changed in order to determine its influence on the host crystal. Its magnetic and magneto-optical properties were investigated by vibrating sample magnetometry and Faraday rotation measurements. The luminescent characteristics of the material, in solution and incorporated in a polymer thin film, were probed by fluorescence experiments.
Keywords: iron oxide; holmium; Faraday rotation; fluorescence; hybrid thin films iron oxide; holmium; Faraday rotation; fluorescence; hybrid thin films
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Bloemen, M.; Vandendriessche, S.; Goovaerts, V.; Brullot, W.; Vanbel, M.; Carron, S.; Geukens, N.; Parac-Vogt, T.; Verbiest, T. Synthesis and Characterization of Holmium-Doped Iron Oxide Nanoparticles. Materials 2014, 7, 1155-1164.

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