| Issue |
EPL
Volume 90, Number 2, April 2010
|
|
|---|---|---|
| Article Number | 27003 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/90/27003 | |
| Published online | 10 May 2010 | |
Spin-wave tunnelling through a mechanical gap
1
Fachbereich Physik and Forschungszentrum OPTIMAS, TU Kaiserslautern - 67663 Kaiserslautern, Germany, EU
2
School of Physics, University of Western Australia - Crawley, WA 6009, Australia
Corresponding author: tschneider@physik.uni-kl.de
Received:
22
December
2009
Accepted:
7
April
2010
We report on the experimental and theoretical investigation of spin-wave tunnelling through a mechanical gap in a ferromagnetic film. Samples with different gap widths were fabricated and the transmission of spin-wave pulses through the gaps was studied. Transmission through the gaps is possible due to the long-range character of the dipole-dipole interaction underlying dynamics of long-wavelength spin waves. By comparing our experimental results with the developed theoretical model, we demonstrate, that the local inhomogeneity of the static magnetisation and the internal field has a significant impact on the transmission.
PACS: 75.30.Ds – Spin waves / 75.40.Gb – Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)
© EPLA, 2010
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