Spectroscopic ellipsometry and magneto-optical kerr spectroscopy of magnetic garnet thin films incorporating plasmonic nanoparticles

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Ferrimagnetic yttrium iron garnet (YIG) thin films incorporating plasmonic Au nanoparticles were prepared. Magneto-optical (MO) Kerr spectroscopy was carried out. The polar MO Kerr spectra in wavelength between 400 and 800nm show that, by incorporating the Au nanoparticles, Kerr rotation angles become negative values in the region where the localized surface plasmon (LSP) resonance of the Au nanoparticles is located. Spectroscopic ellipsometry was performed and complex electric permittivity (dielectric function, ε) of the films was obtained. An anomalous dispersion of Re[ε] is clearly observed in the visible region originating from LSP of Au nanoparticles. The influence of, on the MO Kerr properties of the nanocomposite films and the physics underlying the anomalous Kerr rotation are discussed.

Original languageEnglish
Title of host publicationEllipsometry at the Nanoscale
PublisherSpringer Berlin Heidelberg
Pages325-339
Number of pages15
ISBN (Electronic)9783642339561
ISBN (Print)9783642339554
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Spectroscopic ellipsometry and magneto-optical kerr spectroscopy of magnetic garnet thin films incorporating plasmonic nanoparticles'. Together they form a unique fingerprint.

Cite this