Title Spin transport parameters in $Ni_{80}Fe_{20}/Ru$ and $Ni_{80}Fe_{20}/Ta$ bilayers Author Gomez, J.E. Tedlla, B. Zerai Alvarez, N.R. Alejandro, G. Goovaerts, E. Butera, A. Faculty/Department Faculty of Sciences. Physics Publication type article Publication 2014 Lancaster, Pa , 2014 Subject Physics Source (journal) Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015 Volume/pages 90(2014) :18 , 8 p. ISSN 1098-0121 1550-235X 1098-0121 Article Reference 184401 Carrier E-only publicatie Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract We present a systematic study of the spin transport properties in two different bilayer systems, Ni80Fe20/Ru and Ni80Fe20/Ta, combining ferromagnetic resonance (FMR) and inverse spin Hall effect (ISHE) voltage measurements. We have estimated the effective spin mixing conductance gl by analyzing the permalloy (Py) thickness dependence of the FMR linewidth obtaining gl = (3.8 0.7) x 10(15) cm(-2) and gl = (1.3 0.4) x 10(15) cm(-2) for Py/Ru and Py/Ta, respectively. Analyzing the Ta thickness dependence of the ISHE voltage, we have been able to extract the spin diffusion length, Asp = 1.5 0.5 nm, and spin Hall angle, OsH = -0.03 0.01, of Ta. From the two series of Py/Ta bilayers with thickness variation of ferromagnetic and nonmagnetic layers, respectively we demonstrate a path to estimate the spin diffusion length from the experimental data, independent of the spin Hall angle and the microwave field amplitude. Full text (open access) https://repository.uantwerpen.be/docman/irua/2116df/9500.pdf E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345416000003&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345416000003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345416000003&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle