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  Inverse spin-Hall effect voltage generation by nonlinear spin-wave excitation

Feiler, L., Sentker, K., Brinker, M., Kuhlmann, N., Stein, F.-U., & Meier, G. (2016). Inverse spin-Hall effect voltage generation by nonlinear spin-wave excitation. Physical Review B, 93(6): 064408. doi:10.1103/PhysRevB.93.064408.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-A70D-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-A70E-3
Genre: Journal Article

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PhysRevB.93.064408.pdf (Publisher version), 2MB
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PhysRevB.93.064408.pdf
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2016
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© American Physical Society
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http://dx.doi.org/10.1103/PhysRevB.93.064408 (Publisher version)
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 Creators:
Feiler, Laura1, Author
Sentker, Kathrin1, Author
Brinker, Manuel1, Author
Kuhlmann, Nils1, Author
Stein, Falk-Ulrich2, Author              
Meier, Guido3, 4, 5, Author              
Affiliations:
1Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany, ou_persistent22              
2Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
3Dynamics and Transport in Nanostructures, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074319              
4Ultrafast Electronics, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074323              
5Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany, ou_persistent22              

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 Abstract: We investigate spin currents in microstructured permalloy/platinum bilayers that are excited via magnetic high-frequency fields. Due to this excitation spin pumping occurs at the permalloy/platinum interface and a spin current is injected into the platinum layer. The spin current is detected as a voltage via the inverse spin-Hall effect. We find two regimes reflected by a nonlinear, abrupt voltage surge, which is reproducibly observed at distinct excitation field strengths. Micromagnetic simulations suggest that the surge is caused by excitation of a spin-wave-like mode. The comparatively large voltages reveal a highly efficient spin-current generation method in a mesoscopic spintronic device.

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Language(s): eng - English
 Dates: 2016-01-072015-07-012016-02-042016-02-01
 Publication Status: Published in print
 Pages: 9
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevB.93.064408
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 93 (6) Sequence Number: 064408 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008