Dispersion and spin wave 'tunneling' in nanostructured magnetostatic spin waveguides

Authors :: Kozhanov, A.
Ouellette, D.
Rodwell, M.
Allen, S.J.
Jacob, A.P.
Lee, D.W.
Wang, S.X.
Source :: Journal of Applied Physics. April 1, 2009, Vol. 105 Issue 7, 07D311-1-07D311-3
Publication Year :: 2009
Abstract: Magnetostatic spin wave dispersion and loss are measured in micron scale waveguides in ferromagnetic, metallic CoTaZr and the results have agreed with model calculations of spin wave dispersion. The measured attenuation lengths are much shorter than that predicted from eddy currents in these thin wires and the spin waves have effectively 'tunneled' through air gaps, produced by focused ion beam etching.

Subjects :: Zirconium -- Magnetic properties
Zirconium -- Electric properties
Cobalt alloys -- Magnetic properties
Cobalt alloys -- Electric properties
Ferromagnetism -- Analysis
Magnetostatics -- Measurement
Spin coupling -- Analysis
Tantalum -- Magnetic properties
Tantalum -- Electric properties
Tunneling (Physics) -- Analysis
Physics

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