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Oscillatory interlayer coupling in spin Hall systems

2018; Nature Portfolio; Volume: 8; Issue: 1 Linguagem: Inglês

10.1038/s41598-018-20685-7

2045-2322

A. M. Gonçalves, F. García, H. K. Lee, Andrew J. Smith, P. R. Soledade, C. A. C. Passos, Marcio Costa, N. M. Souza-Neto, I. N. Krivorotov, L. C. Sampaio, Igor Barsukov,

Physics of Superconductivity and Magnetism

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.