Fabrication of two-dimensional Au at FePt core-shell nanoparticle arrays by photochemical metal deposition
- Institut fuer Angewandte Photophysik, Technische Universitaet Dresden, 01062 Dresden (Germany)
- Institut fuer Festkoerperphysik, Universitaet Ulm, 89069 Ulm (Germany)
- Istituto Italiano di Tecnologia (IIT), Via Morego 30, I-16163 Genova (Italy)
- Physikalische Chemie und Elektrochemie, Technische Universitaet Dresden, 01062 Dresden (Germany)
In this report, we experimentally demonstrate that single platinum nanoparticles exhibit the necessary catalytic activity for the optically induced reduction of H[AuCl{sub 4}] 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.
- OSTI ID:
- 21347422
- Journal Information:
- Applied Physics Letters, Vol. 96, Issue 18; Other Information: DOI: 10.1063/1.3425670; (c) 2010 American Institute of Physics; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
ATOMIC FORCE MICROSCOPY
DEPOSITION
ENCAPSULATION
FABRICATION
GOLD
GOLD CHLORIDES
IRON ALLOYS
LAYERS
MAGNETIC FIELDS
MAGNETIZATION
NANOSTRUCTURES
PARTICLES
PHOTOCHEMISTRY
PLATINUM
PLATINUM ALLOYS
THIN FILMS
ALLOYS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELEMENTS
FILMS
GOLD COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
METALS
MICROSCOPY
PLATINUM METAL ALLOYS
PLATINUM METALS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ATOMIC FORCE MICROSCOPY
DEPOSITION
ENCAPSULATION
FABRICATION
GOLD
GOLD CHLORIDES
IRON ALLOYS
LAYERS
MAGNETIC FIELDS
MAGNETIZATION
NANOSTRUCTURES
PARTICLES
PHOTOCHEMISTRY
PLATINUM
PLATINUM ALLOYS
THIN FILMS
ALLOYS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELEMENTS
FILMS
GOLD COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
METALS
MICROSCOPY
PLATINUM METAL ALLOYS
PLATINUM METALS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS