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Journal articles
Magnetic Gold Confined in Ordered Mesoporous Titania Thin Films: A Noble Approach for Magnetic Devices
Abstract : In the past decade, the surprising magnetic behavior of gold nanoparticles has been reported. This unexpected property is mainly attributed both to size and surface effects. Mesoporous thin films are ideal matrices for metallic nanoparticles inclusion, because of their highly accessible and tailorable pore systems that lead to completely tunable chemical environments. Exploiting these features, we synthesized Au nanoparticles within mesoporous titania thin films (film thickness of ∼150 nm and pore diameter of ∼5 nm), and we studied their magnetic properties under confinement. Here, we present the results of the magnetization as a function of temperature and magnetic field for this system, which are consistent with the previously reported for free (unconfined) thiol-capped gold nanoparticles. The successful inclusion of stable magnetic Au nanoparticles within transparent mesoporous thin films opens the gates for the application of these nanocomposites in two-dimensional (2D) microdevices technology and magneto-optical devices.
Cited literature [22 references]
https://hal.sorbonne-universite.fr/hal-01445065
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Tuesday, January 24, 2017 - 3:30:57 PM
Last modification on : Friday, October 30, 2020 - 2:40:02 PM
Long-term archiving on: : Tuesday, April 25, 2017 - 5:48:41 PM
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Tuesday, January 24, 2017 - 3:30:57 PM
Last modification on : Friday, October 30, 2020 - 2:40:02 PM
Long-term archiving on: : Tuesday, April 25, 2017 - 5:48:41 PM
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Granja_2016_Magnetic_Gold.pdf
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