Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers

F. D. Czeschka; L. Dreher; M. S. Brandt; M. Weiler; M. Althammer; I. -M. Imort; G. Reiss; A. Thomas; W. Schoch; W. Limmer; H. Huebl; R. Gross; S. T. B. Goennenwein

doi:10.1103/PhysRevLett.107.046601

Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers

Mesoscale and Nanoscale Physics 2011-08-01 v2

Authors: F. D. Czeschka , L. Dreher , M. S. Brandt , M. Weiler , M. Althammer , I. -M. Imort , G. Reiss , A. Thomas , W. Schoch , W. Limmer , H. Huebl , R. Gross , S. T. B. Goennenwein

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Abstract

We systematically measured the DC voltage V_ISH induced by spin pumping together with the inverse spin Hall effect in ferromagnet/platinum bilayer films. In all our samples, comprising ferromagnetic 3d transition metals, Heusler compounds, ferrite spinel oxides, and magnetic semiconductors, V_ISH invariably has the same polarity. V_ISH furthermore scales with the magnetization precession cone angle with a universal prefactor, irrespective of the magnetic properties, the charge carrier transport mechanism or type. These findings quantitatively corroborate the present theoretical understanding of spin pumping in combination with the inverse spin Hall effect.

Keywords

spin pumping inverse spin Hall effect ferromagnet/platinum bilayer magnetization precession universal scaling DC voltage

Cite

@article{arxiv.1012.3017,
  title  = {Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers},
  author = {F. D. Czeschka and L. Dreher and M. S. Brandt and M. Weiler and M. Althammer and I. -M. Imort and G. Reiss and A. Thomas and W. Schoch and W. Limmer and H. Huebl and R. Gross and S. T. B. Goennenwein},
  journal= {arXiv preprint arXiv:1012.3017},
  year   = {2011}
}

Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers

Abstract

Keywords

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