Microscopic magnetic structuring of a spin-wave waveguide by ion implantation in a Ni81Fe19 layer

作者：Obry Bjoern^*; Meyer Thomas; Pirro Philipp; Braecher Thomas; Laegel Bert; Osten Julia; Strache Thomas; Fas**ender Juergen; Hillebrands Burkard

来源：Applied Physics Letters, 2013, 102(2): 022409.

DOI：10.1063/1.4775759

We investigate the spin-wave excitation in microscopic waveguides fabricated by localized Cr+ ion implantation in a ferromagnetic Ni81Fe19 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.

• 出版日期2013-1-14