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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.

SUBMITTER: Goncalves AM

PROVIDER: S-EPMC5797137 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Oscillatory interlayer coupling in spin Hall systems.

Gonçalves A M AM Garcia F F Lee H K HK Smith A A Soledade P R PR Passos C A C CAC Costa M M Souza-Neto N M NM Krivorotov I N IN Sampaio L C LC Barsukov I I

Scientific reports 20180202 1

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 interla ...[more]

PMID: 29396498

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