Tuning the Magneto-Optical Response of Nanosize Ferromagnetic Ni Disks Using the Phase of Localized Plasmons
2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 111, no 16, 167401- p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2013. Vol. 111, no 16, 167401- p.
Faraday-Rotation, Enhanced Magnetooptics, Optical-Properties, Kerr Rotation, Films, Magnetoplasmonics, Ellipsometry, Particles, Resonance, Nickel
IdentifiersURN: urn:nbn:se:kth:diva-134571DOI: 10.1103/PhysRevLett.111.167401ISI: 000326119300016ScopusID: 2-s2.0-84885702661OAI: oai:DiVA.org:kth-134571DiVA: diva2:667644
FunderKnut and Alice Wallenberg FoundationSwedish Foundation for Strategic Research , RMA08
QC 201311272013-11-272013-11-252013-11-27Bibliographically approved