Magnonic band structure in a Co/Pd stripe domain system investigated by Brillouin light scattering and micromagnetic simulations

Chandrima Banerjee, Pawel Gruszecki, Jaroslaw W. Klos, Olav Hellwig, Maciej Krawczyk, and Anjan Barman
Phys. Rev. B 96, 024421 – Published 14 July 2017
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Abstract

By combining Brillouin light scattering and micromagnetic simulations, we studied the spin-wave (SW) dynamics of a Co/Pd thin film multilayer, which features a stripe domain structure at remanence. The periodic up and down domains are separated by corkscrew type domain walls. The existence of these domains causes a scattering of the otherwise bulk and surface SW modes, which form mode families, similar to a one-dimensional magnonic crystal. The dispersion relation and mode profiles of SWs are measured for the transferred wave vector parallel and perpendicular to the domain axis.

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  • Received 13 April 2017

DOI:https://doi.org/10.1103/PhysRevB.96.024421

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Chandrima Banerjee1, Pawel Gruszecki2, Jaroslaw W. Klos2, Olav Hellwig3, Maciej Krawczyk2, and Anjan Barman1,*

  • 1Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700 106, India
  • 2Faculty of Physics, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan, 61-614, Poland
  • 3Institute of Physics, Chemnitz University of Technology, Reichenhainer Straße 70, D-09107 Chemnitz, Germany and Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany

  • *abarman@bose.res.in

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Issue

Vol. 96, Iss. 2 — 1 July 2017

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