DOI: 10.1063/1.3280378. Suppression of spin-pumping by a MgO tunnel-barrier

Suppression of spin-pumping by a MgO tunnel-barrier

10.1063/1.3280378

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Spin-pumping generates pure spin currents in normal metals at the ferromagnet (F)/normal metal (N) interface. The efficiency of spin-pumping is given by the spin mixing conductance, which depends on N and the F/N interface. We directly study the spin-pumping through an MgO tunnel-barrier using the inverse spin Hall effect, which couples spin and charge currents and provides a direct electrical detection of spin currents in the normal metal. We find that spin-pumping is suppressed by the tunnel-barrier, which is contrary to recent studies that suggest that the spin mixing conductance can be enhanced by a tunnel-barrier inserted at the interface.

Bibliography

Mosendz, O., Pearson, J. E., Fradin, F. Y., Bader, S. D., & Hoffmann, A. (2010). Suppression of spin-pumping by a MgO tunnel-barrier. Applied Physics Letters, 96(2).

Authors 5

O. Mosendz (first)
J. E. Pearson (additional)
F. Y. Fradin (additional)
S. D. Bader (additional)
A. Hoffmann (additional)

References 19 Referenced 61

10.1038/nphys1122 / Nat. Phys. (2008)
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10.1063/1.2834399 / J. Appl. Phys. (2008)
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O. Mosendz, J. E. Pearson, G. E. W. Bauer, S. D. Bader, and A. Hoffmann, arXiv:0911.2725v2 (unpublished).
10.1063/1.2199473 / Appl. Phys. Lett. (2006)
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Dates

Type	When
Created	15 years, 7 months ago (Jan. 11, 2010, 6:24 p.m.)
Deposited	2 years, 2 months ago (June 22, 2023, 8:48 p.m.)
Indexed	1 month ago (July 30, 2025, 6:53 a.m.)
Issued	15 years, 7 months ago (Jan. 11, 2010)
Published	15 years, 7 months ago (Jan. 11, 2010)
Published Online	15 years, 7 months ago (Jan. 11, 2010)
Published Print	15 years, 7 months ago (Jan. 11, 2010)

Funders 0

None

BibTeX

@article{Mosendz_2010, title={Suppression of spin-pumping by a MgO tunnel-barrier}, volume={96}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3280378}, DOI={10.1063/1.3280378}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mosendz, O. and Pearson, J. E. and Fradin, F. Y. and Bader, S. D. and Hoffmann, A.}, year={2010}, month=jan }

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