Synthesis and Characterization of Holmium-Doped Iron Oxide Nanoparticles

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.

[1]  V. Dmitriev,et al.  Compact optical switch based on 2D photonic crystal and magneto-optical cavity. , 2013, Optics letters.

[2]  Gunther Hennrich,et al.  Giant Faraday Rotation in Mesogenic Organic Molecules , 2013 .

[3]  A. Athanassiou,et al.  Formation and microscopic investigation of iron oxide aligned nanowires into polymeric nanocomposite films , 2010, Microscopy research and technique.

[4]  Jung-tak Jang,et al.  Nanoscale magnetism control via surface and exchange anisotropy for optimized ferrimagnetic hysteresis. , 2012, Nano letters.

[5]  D. Speliotis,et al.  Magnetic recording beyond the first 100 Years , 1999 .

[6]  Ward Brullot,et al.  Magnetic-plasmonic nanoparticles for the life sciences: calculated optical properties of hybrid structures. , 2012, Nanomedicine : nanotechnology, biology, and medicine.

[7]  Valeriy V. Yashchuk,et al.  Sensitive Magnetometry based on Nonlinear Magneto-Optical Rotation , 2000 .

[8]  V. Pecharsky,et al.  Handbook on the physics and chemistry of rare earths , 1979 .

[9]  Hao Zeng,et al.  Monodisperse MFe2O4 (M = Fe, Co, Mn) nanoparticles. , 2004, Journal of the American Chemical Society.

[10]  Ventsislav K. Valev,et al.  Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles , 2012 .

[11]  S. Laurent,et al.  A new metallostar complex based on an aluminum(III) 8-hydroxyquinoline core as a potential bimodal contrast agent. , 2012, Dalton transactions.

[12]  Thierry Verbiest,et al.  Core-shell nanoparticles as enhanced probes for imaging applications , 2012, Photonics Europe.

[13]  J. Bünzli,et al.  Chapter 235 Lanthanide Near-Infrared Luminescence in Molecular Probes and Devices , 2007 .

[14]  C. Robic,et al.  Magnetic iron oxide nanoparticles: synthesis, stabilization, vectorization, physicochemical characterizations, and biological applications. , 2008, Chemical reviews.

[15]  M. Iqbal,et al.  Effect of Ho3+ substitutions on the structural and magnetic properties of BaFe12O19 hexaferrites , 2010 .

[16]  Taeghwan Hyeon,et al.  Chemical Synthesis of Magnetic Nanoparticles , 2003 .

[17]  Thierry Verbiest,et al.  Faraday rotation and its dispersion in the visible region for saturated organic liquids. , 2012, Physical chemistry chemical physics : PCCP.

[18]  Taeghwan Hyeon,et al.  Designed Synthesis of Uniformly Sized Iron Oxide Nanoparticles for Efficient Magnetic Resonance Imaging Contrast Agents , 2012 .

[19]  Yongmin Chang,et al.  Paramagnetic ultrasmall gadolinium oxide nanoparticles as advanced T1 MRI contrast agent: account for large longitudinal relaxivity, optimal particle diameter, and in vivo T1 MR images. , 2009, ACS nano.

[20]  Christopher G. Morgan,et al.  The Active‐Core/Active‐Shell Approach: A Strategy to Enhance the Upconversion Luminescence in Lanthanide‐Doped Nanoparticles , 2009 .

[21]  Taeghwan Hyeon,et al.  Ultra-large-scale syntheses of monodisperse nanocrystals , 2004, Nature materials.