Authors: de la Venta, J.; Bouzas, V.; Pucci, A.; Laguna-Marco, M.A.; Haskel, D.; te Velthuis, S.G.E.; Hoffmann, A.; Lal, J.; Bleuel, M.; Ruggeri, G.; de Julián Fernández, C.; García, M.A.

Source: Journal of Nanoscience and Nanotechnology, Volume 9, Number 11, November 2009 , pp. 6434-6438(5)

Publisher: American Scientific Publishers

Abstract:

X-ray magnetic circular dichroism (XMCD) and Small Angle Neutron Scattering (SANS) measurements were performed on thiol capped Au nanoparticles (NPs) embedded into polyethylene. An XMCD signal of 0.8 · 10⁻⁴ was found at the Au L₃ edge of thiol capped Au NPs embedded in a polyethylene matrix for which Superconducting Quantum Interference Device (SQUID) magnetometry yielded a saturation magnetization, M_S, of 0.06 emu/g_Au. SANS measurements showed that the 3.2 nm average-diameter nanoparticles are 28% polydispersed, but no detectable SANS magnetic signal was found with the resolution and sensitivity accessible with the neutron experiment. A comparison with previous experiments carried out on Au NPs and multilayers, yield to different values between XMCD signals and magnetization measured by SQUID magnetometer. We discuss the origin of those differences.

Keywords: GOLD NANOPARTICLES; X-RAY MAGNETIC CIRCULAR DICHROISM (XMCD); SMALL ANGLE NEUTRON SCATTERING (SANS)

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2009.1877

Publication date: 2009-11-01

More about this publication?

• Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
• Editorial Board
• Information for Authors
• Subscribe to this Title
• Terms & Conditions
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Technology
• By this author: de la Venta, J. ;  Bouzas, V. ;  Pucci, A. ;  Laguna-Marco, M.A. ;  Haskel, D. ;  te Velthuis, S.G.E. ;  Hoffmann, A. ;  Lal, J. ;  Bleuel, M. ;  Ruggeri, G. ;  de Julián Fernández, C. ;  García, M.A.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers