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.
|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|
|Appare nelle tipologie:||2.1 Articolo su rivista |