Spin pumping by parametrically excited exchange magnons
- PMID: 21699324
- DOI: 10.1103/PhysRevLett.106.216601
Spin pumping by parametrically excited exchange magnons
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.
© 2011 American Physical Society
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