Spin pumping by parametrically excited exchange magnons

Christian W. Sandweg; Yosuke Kajiwara; Andrii V. Chumak; Alexander A. Serga; Vitaliy I. Vasyuchka; M. Benjamin Jungfleisch; Eiji Saitoh; Burkard Hillebrands

doi:10.1103/PhysRevLett.106.216601

Spin pumping by parametrically excited exchange magnons

Mesoscale and Nanoscale Physics 2013-09-27 v2 Other Condensed Matter

Authors: Christian W. Sandweg , Yosuke Kajiwara , Andrii V. Chumak , Alexander A. Serga , Vitaliy I. Vasyuchka , M. Benjamin Jungfleisch , Eiji Saitoh , Burkard Hillebrands

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We experimentally show that exchange magnons can be detected using a combination of spin pumping and inverse spin-Hall effect (iSHE) proving its wavelength integrating capability down to the sub-micrometer scale. The magnons were injected in a ferrimagnetic yttrium iron garnet film by parametric pumping and the iSHE-induced 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. This study opens the field of the magnon-based information processing to magnons with nano-scale wavelengths.

Keywords

spin transport spin hall effect spin waves

Cite

@article{arxiv.1103.2229,
  title  = {Spin pumping by parametrically excited exchange magnons},
  author = {Christian W. Sandweg and Yosuke Kajiwara and Andrii V. Chumak and Alexander A. Serga and Vitaliy I. Vasyuchka and M. Benjamin Jungfleisch and Eiji Saitoh and Burkard Hillebrands},
  journal= {arXiv preprint arXiv:1103.2229},
  year   = {2013}
}

Spin pumping by parametrically excited exchange magnons

Abstract

Keywords

Cite

Related papers