Journal
NANOSCALE
Volume 3, Issue 11, Pages 4647-4654Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1nr10768b
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Funding
- Tyco Electronics
- US Government
- Intelligence Community
- Office of the Director of National Intelligence
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We report here a simple synthetic route to Au-FexOy heterostructures in which spinel ferrite (FexOy) grows as a nanorod on a spherical gold (Au) seed. The large red shift in the plasmon resonance in the heterostructures could be explained by a dielectric effect (although we could not entirely exclude a contribution due to electron transfer from Au to defect states at the Au-FexOy interface), while the magnetic properties of the Au-FexOy heterostructures were basically the same as those of the corresponding nanocrystals after Au leaching. In films of Au-FexOy heterostructures the electrical conductivity appeared to be mediated by the Au domains.
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