We explore the influence of the phase of localized plasmon resonances on the magneto-optical activity of nanoferromagnets. We demonstrate that these systems can be described as two orthogonal damped oscillators coupled by the spin-orbit interaction. We prove that only the spin-orbit induced transverse plasmon plays an active role on the magneto-optical properties by controlling the relative amplitude and phase lag between the two oscillators. Our theoretical predictions are fully confirmed by magneto-optical Kerr effect and optical extinction measurements in nanostructures of different size and shape.
Autori: | |
Data di pubblicazione: | 2013 |
Titolo: | Tuning the Magneto-Optical Response of Nanosize Ferromagnetic Ni Disks Using the Phase of Localized Plasmons |
Rivista: | PHYSICAL REVIEW LETTERS |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevLett.111.167401 |
Volume: | 111 |
Appare nelle tipologie: | 2.1 Articolo su rivista |
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