期刊
NANO LETTERS
卷 11, 期 3, 页码 1237-1240出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl1042243
关键词
Core-shell nanoparticles; localized surface plasmon resonance; magneto-optical effect; Faraday rotation
类别
资金
- DARPA
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0922582] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1006013] Funding Source: National Science Foundation
We present theoretical and experimental studies that explain the observed strong enhancement of the magneto-optical (MO) Faraday rotation in all-metal core-shell Co-Ag nanopartides (NPs) attributed to localized surface plasmon resonance (LSPR). We also explain why the optical absorption and MO spectra peaks appear blue-shifted with increased Co core size while keeping the NP size constant. Further, we demonstrate direct correlation between the strong LSPR induced electromagnetic fields and the enhanced MO activity of the NPs.
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