Dispersion and spin wave "tunneling" in nano-structured magnetostatic spin waveguides

A. Kozhanov; D. Ouellette; M. Rodwell; A. P. Jacob; D. W. Lee; S. X. Wang; S. J. Allen

doi:10.1063/1.3079767

Dispersion and spin wave "tunneling" in nano-structured magnetostatic spin waveguides

Materials Science 2009-11-13 v1

Authors: A. Kozhanov , D. Ouellette , M. Rodwell , A. P. Jacob , D. W. Lee , S. X. Wang , S. J. Allen

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Abstract

Magnetostatic spin wave dispersion and loss are measured in micron scale spin wave-guides in ferromagnetic, metallic CoTaZr. Results are in good agreement with model calculations of spin wave dispersion. The measured attenuation lengths, of the order of 3um, are several of orders of magnitude shorter than that predicted from eddy currents in these thin wires. Spin waves effectively "tunnel" through air gaps, produced by focused ion beam etching, as large as 1.5 um.

Keywords

magnetostatic spin waves spin waveguides dispersion attenuation length tunneling ferromagnetic metals focused ion beam etching

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@article{arxiv.0811.0353,
  title  = {Dispersion and spin wave "tunneling" in nano-structured magnetostatic spin waveguides},
  author = {A. Kozhanov and D. Ouellette and M. Rodwell and A. P. Jacob and D. W. Lee and S. X. Wang and S. J. Allen},
  journal= {arXiv preprint arXiv:0811.0353},
  year   = {2009}
}

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3 pages, 5 figures

Dispersion and spin wave "tunneling" in nano-structured magnetostatic spin waveguides

Abstract

Keywords

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