Effects of antidot shape on the spin wave spectra of two-dimensional Ni80Fe20 antidot lattices

Ruma Mandal, Pinaki Laha, Kaustuv Das, Susmita Saha, Saswati Barman, A. K. Raychaudhuri, Anjan Barman

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

We show that the optically induced spin wave spectra of nanoscale Ni 80Fe20 (permalloy) antidot lattices can be tuned by changing the antidot shape. The spin wave spectra also show an anisotropy with the variation of the in-plane bias field orientation. Analyses show this is due to various quantized and extended modes, whose nature changes with the antidot shape and bias field orientation as a result of the variation of the internal magnetic field profile. The observed variation and anisotropy in the spin waves with the internal and external parameters are important for their applications in magnonic devices.

Original languageEnglish
Article number262410
JournalApplied Physics Letters
Volume103
Issue number26
DOIs
Publication statusPublished - 2013 Dec 23
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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