TITLE

Fabrication of two-dimensional Au@FePt core-shell nanoparticle arrays by photochemical metal deposition

AUTHOR(S)
Härtling, Thomas; Uhlig, Tino; Seidenstücker, Axel; Bigall, Nadja C.; Olk, Phillip; Wiedwald, Ulf; Han, Luyang; Eychmüller, Alexander; Plettl, Alfred; Ziemann, Paul; Eng, Lukas M.
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/3/2010, Vol. 96 Issue 18, p183111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this report, we experimentally demonstrate that single platinum nanoparticles exhibit the necessary catalytic activity for the optically induced reduction of H[AuCl4] complexes to elemental gold. This finding is exploited for the parallel Au encapsulation of FePt nanoparticles arranged in a self-assembled two-dimensional array. Magnetic force microscopy reveals that the thin gold layer formed on the FePt particles leads to a strongly increased long-term stability of their magnetization under ambient conditions.
ACCESSION #
50309170

 

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