Oscillatory interlayer coupling in spin Hall systems
Abstract
Many spintronics applications consist of ultrathin magnetic and nonmagnetic multilayers and require an in-depth understanding of interfacial magnetism and spin transport. Here, we study permalloy/copper/platinum multilayer systems. We find that magnetic damping, perpendicular anisotropy, and proximity magnetization exhibit correlated oscillations as a function of the copper thickness. We ascribe these observations to an oscillatory interlayer coupling between permalloy and platinum. Such interlayer coupling may have a significant impact on the performance of spintronics applications.
- Authors:
-
- Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro (Brazil)
- Univ. of California, Irvine, CA (United States)
- Univ. Federal do Amapá (Brazil)
- Univ. Federal do Espírito Santo (Brazil)
- Lab. Nacional de Luz Síncrotron, Campinas (Brazil)
- Univ. of California, Riverside, CA (United States)
- Publication Date:
- Research Org.:
- Univ. of California, Riverside, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1500025
- Grant/Contract Number:
- SC0012670
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Gonçalves, A. M., Garcia, F., Lee, H. K., Smith, A., Soledade, P. R., Passos, C. A. C., Costa, M., Souza-Neto, N. M., Krivorotov, I. N., Sampaio, L. C., and Barsukov, I. Oscillatory interlayer coupling in spin Hall systems. United States: N. p., 2018.
Web. doi:10.1038/s41598-018-20685-7.
Gonçalves, A. M., Garcia, F., Lee, H. K., Smith, A., Soledade, P. R., Passos, C. A. C., Costa, M., Souza-Neto, N. M., Krivorotov, I. N., Sampaio, L. C., & Barsukov, I. Oscillatory interlayer coupling in spin Hall systems. United States. https://doi.org/10.1038/s41598-018-20685-7
Gonçalves, A. M., Garcia, F., Lee, H. K., Smith, A., Soledade, P. R., Passos, C. A. C., Costa, M., Souza-Neto, N. M., Krivorotov, I. N., Sampaio, L. C., and Barsukov, I. Fri .
"Oscillatory interlayer coupling in spin Hall systems". United States. https://doi.org/10.1038/s41598-018-20685-7. https://www.osti.gov/servlets/purl/1500025.
@article{osti_1500025,
title = {Oscillatory interlayer coupling in spin Hall systems},
author = {Gonçalves, A. M. and Garcia, F. and Lee, H. K. and Smith, A. and Soledade, P. R. and Passos, C. A. C. and Costa, M. and Souza-Neto, N. M. and Krivorotov, I. N. and Sampaio, L. C. and Barsukov, I.},
abstractNote = {Many spintronics applications consist of ultrathin magnetic and nonmagnetic multilayers and require an in-depth understanding of interfacial magnetism and spin transport. Here, we study permalloy/copper/platinum multilayer systems. We find that magnetic damping, perpendicular anisotropy, and proximity magnetization exhibit correlated oscillations as a function of the copper thickness. We ascribe these observations to an oscillatory interlayer coupling between permalloy and platinum. Such interlayer coupling may have a significant impact on the performance of spintronics applications.},
doi = {10.1038/s41598-018-20685-7},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2018},
month = {Fri Feb 02 00:00:00 EST 2018}
}
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Figures / Tables:
Figure 1: (a) Typical ferromagnetic resonance data: frequency–resonance field relation. (b) Linewidth as a function of frequency. (c) Gilbert damping $α$ as a function of Cu thickness t for the set 1 of samples grown on oxidized silicon (Si/SiOx). (d) Gilbert damping for the set 2 of samples grown onmore »
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.