Enhanced inverse spin-Hall effect in ultrathin ferromagnetic/normal metal bilayers

Skinner, T.D.; Kurebayashi, H.; Fang, D.; Heiss, D.; Irvine, A.C.; Hindmarch, A.T.; Wang, M.; Rushforth, A.W.; Ferguson, A.J.

Abstract

Electrically detected ferromagnetic resonance is measured in microdevices patterned from ultra-thin Co/Pt bilayers. Spin pumping and rectification voltages are observed and distinguished via their angular dependence. The spin-pumping voltage shows an unexpected increase as the cobalt thickness is reduced below 2 nm. This enhancement allows more efficient conversion of spin to charge current.

Citation

Skinner, T., Kurebayashi, H., Fang, D., Heiss, D., Irvine, A., Hindmarch, A., …Ferguson, A. (2013). Enhanced inverse spin-Hall effect in ultrathin ferromagnetic/normal metal bilayers. Applied Physics Letters, 102(7), Article 072401. https://doi.org/10.1063/1.4792693

• Journal Article Type: Article
• Publication Date: Feb 18, 2013
• Deposit Date: Feb 20, 2013
• Publicly Available Date: May 2, 2013
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 102
• Issue: 7
• Article Number: 072401
• DOI: https://doi.org/10.1063/1.4792693
• Keywords: Cobalt alloys, Ferromagnetic materials, Ferromagnetic resonance, Magnetic multilayers, Platinum alloys, Spin Hall effect.
• Public URL: https://durham-repository.worktribe.com/output/1468005