We investigate the spin-wave excitation in microscopic waveguides fabricated by localized Cr+ ion implantation in a ferromagnetic Ni(81)Fe(19) film. We demonstrate that spin-wave waveguides can be conveniently made by this technique. The magnetic patterning technique yields an increased damping and a reduction in saturation magnetization in the implanted regions that can be extracted from Brillouin light scattering measurements of the spin-wave excitation spectra. Furthermore, the waveguide performance as well as the internal field of the waveguide depend on the doping fluence. The results prove that localized ion implantation is a powerful tool for the patterning of magnon spintronic devices.
@article{arxiv.1211.4786,
title = {Microscopic magnetic structuring of a spin-wave waveguide by ion implantation in a Ni(81)Fe(19) layer},
author = {Björn Obry and Thomas Meyer and Philipp Pirro and Thomas Brächer and Bert Lägel and Julia Osten and Thomas Strache and Jürgen Fassbender and Burkard Hillebrands},
journal= {arXiv preprint arXiv:1211.4786},
year = {2013}
}
Comments
Submitted to Applied Physics Letters, 4 pages, 3 figures