期刊
APPLIED PHYSICS LETTERS
卷 95, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3182689
关键词
cobalt; colloidal crystals; interface magnetism; Kerr magneto-optical effect; magnetic thin films; nanosensors; platinum; reflectivity; surface plasmon resonance
资金
- National Science Foundation of China
- National Basic Research Program of China
- 973 Project
Magneto-optical Kerr effect and optical reflectance are measured in the visible region for perpendicularly magnetized Co/Pt films on self-assembly array of two-dimensional closely packed polystyrene spheres. Peaks and valleys are observed in the magneto-optical Kerr and the optical reflectance spectra and their positions scale with the sphere diameter. In explanation of the above scenario, not only the Mie optical scattering of single nanocaps but also the surface plasmon resonance should be considered. This work will facilitate development of magnetoplasmonic nanosensors.
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