Abstract
We experimentally show that exchange magnons can be detected by using a combination of spin pumping and the inverse spin-Hall effect proving its wavelength integrating capability down to the submicrometer scale. The magnons were injected in a ferrite yttrium iron garnet film by parametric pumping and the inverse spin-Hall effect voltage was detected in an attached Pt layer. The role of the density, wavelength, and spatial localization of the magnons for the spin pumping efficiency is revealed.
- Received 11 March 2011
DOI:https://doi.org/10.1103/PhysRevLett.106.216601
© 2011 American Physical Society
Viewpoint
Spin-magnon transmutation
Published 23 May 2011
The conversion of magnons into electron spin flips via spin pumping may allow for low-power spin-based data transmission schemes.
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