Magneto-optical kerr effects of yttrium-iron garnet thin films incorporating gold nanoparticles

Satoshi Tomita, Takeshi Kato, Shigeru Tsunashima, Satoshi Iwata, Minoru Fujii, Shinji Hayashi

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

We report an experimental study on magneto-optical (MO) Kerr effects of yttrium-iron garnet (YIG) thin films incorporating Au nanoparticles. The polar MO Kerr spectra in the 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 polariton (SPP) resonance of the Au nanoparticles is located. The anomalous Kerr rotation indicates a possible coupling between the MO Kerr effect of YIG and the SPP. A mechanism for the coupling is discussed.

Original languageEnglish
Article number167402
JournalPhysical Review Letters
Volume96
Issue number16
DOIs
Publication statusPublished - 2006 May 11
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Magneto-optical kerr effects of yttrium-iron garnet thin films incorporating gold nanoparticles'. Together they form a unique fingerprint.

  • Cite this