Current-controlled dynamic magnonic crystal

A. V. Chumak; T. Neumann; A. A. Serga; B. Hillebrands; M. P. Kostylev

doi:10.1088/0022-3727/42/20/205005

Current-controlled dynamic magnonic crystal

Other Condensed Matter 2009-10-14 v1

Authors: A. V. Chumak , T. Neumann , A. A. Serga , B. Hillebrands , M. P. Kostylev

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Abstract

We demonstrate a current-controlled, dynamic magnonic crystal. It consists of a ferrite film whose internal magnetic field exhibits a periodic, cosine-like variation. The field modulation is created by a direct current flowing through an array of parallel wires placed on top of a spin-wave waveguide. A single, pronounced rejection band in the spin-wave transmission characteristics is formed due to spin-wave scattering from the inhomogeneous magnetic field. With increasing current the rejection band depth and its width increase strongly. The magnonic crystal allows a fast control of its operational characteristics via the applied direct current. Simulations confirm the experimental results.

Keywords

spin current spin waves

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@article{arxiv.0904.0332,
  title  = {Current-controlled dynamic magnonic crystal},
  author = {A. V. Chumak and T. Neumann and A. A. Serga and B. Hillebrands and M. P. Kostylev},
  journal= {arXiv preprint arXiv:0904.0332},
  year   = {2009}
}

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4 pages, 3 figures

Current-controlled dynamic magnonic crystal

Abstract

Keywords

Cite

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