Tuning the Magneto-Optical Response of Nanosize Ferromagnetic Ni Disks Using the Phase of Localized Plasmons
Artikel i vetenskaplig tidskrift, 2013
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.
FILMS
ENHANCED MAGNETOOPTICS
PARTICLES
ELLIPSOMETRY
RESONANCE
MAGNETOPLASMONICS
OPTICAL-PROPERTIES
ROTATION
FARADAY-ROTATION
NICKEL
KERR
IU KW
Författare
N. Maccaferri
A. Berger
Stefano Bonetti
V. Bonanni
M. Kataja
Q. H. Qin
S. van Dijken
Zhaleh Pirzadeh Irannezhad
Chalmers, Teknisk fysik, Bionanofotonik
Alexander Dmitriev
Chalmers, Teknisk fysik, Bionanofotonik
Josep Nogues
Johan Åkerman
Göteborgs universitet
Paolo Vavassori
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 111 16 artikel nr 167401- 167401Ämneskategorier
Fysik
DOI
10.1103/PhysRevLett.111.167401