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-

Ämneskategorier

Fysik

DOI

10.1103/PhysRevLett.111.167401

Mer information

Skapat

2017-10-07