Resonant spin wave excitation in magnetoplasmonic bilayers using short laser pulses

Stanislav Kolodny, Dmitry Yudin, Ivan Iorsh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In magnetically ordered solids a static magnetic field can be generated by virtue of the transverse magneto-optical Kerr effect (TMOKE). Moreover, the latter was shown to be dramatically enhanced due to the optical excitation of surface plasmons in nanostructures with relatively small optical losses. In this paper we suggest a new method for resonant optical excitation in a prototypical bilayer composed of a noble metal (Au) with grating and a ferromagnetic thin film of yttrium iron garnet (YIG) via a frequency comb. Based on magnetization dynamics simulations we show that for a frequency comb with certain parameters, chosen to be resonant with the spin-wave excitations of YIG, the TMOKE is drastically enhanced, hinting at possible technological applications in optical control of spintronics systems.

Original languageEnglish
Pages (from-to)2003-2007
Number of pages5
JournalNanoscale
Volume11
Issue number4
DOIs
Publication statusPublished - 28 Jan 2019
Externally publishedYes

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