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Tuning the magneto-optical response of nanosize ferromagnetic Ni disks using the phase of localized plasmons

AuthorsMaccaferri, Nicolò; Bonanni, Valentina; Dmitriev, Alexandre; Nogués, Josep ; Åkerman, Johan; Vavassori, Paolo
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review Letters 111: 167401 (2013)
AbstractWe 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. © 2013 American Physical Society.
Descriptionet al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.111.167401
Identifiersdoi: 10.1103/PhysRevLett.111.167401
issn: 0031-9007
e-issn: 1079-7114
Appears in Collections:(CIN2) Artículos
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