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Spin pumping in nanolayers of WS.sub.2./sub./Co.sub.2./sub.FeAl heterostructures: Large spin mixing conductance and spin transparency
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SYSNO ASEP 0567150 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spin pumping in nanolayers of WS2/Co2FeAl heterostructures: Large spin mixing conductance and spin transparency Author(s) Hait, S. (IN)
Gupta, N.K. (IN)
Sharma, N. (JP)
Pandey, L. (JP)
Kumar, N. (JP)
Barwal, V. (JP)
Kumar, Prabhat (FZU-D) ORCID
Chaudhary, S. (IN)Number of authors 8 Article number 133901 Source Title Journal of Applied Physics. - : AIP Publishing - ISSN 0021-8979
Roč. 132, č. 13 (2022)Number of pages 10 s. Language eng - English Country US - United States Keywords spin pumping ; heterostructures ; large spin mixing conductance ; spin transparency Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000888258100016 EID SCOPUS 85139877971 DOI 10.1063/5.0107655 Annotation Materials with high spin–orbit coupling (SOC) are a prerequisite for the realization of spin–orbit torque-based magnetic memories. Transition metal dichalcogenides (TMDs) are an apt choice for such applications due to their high SOC strength. In this work, we have investigated the spin pumping phenomenon at the interface between thin tungsten disulphide (WS2) films and Co2FeAl (CFA) Heusler alloy films by performing ferromagnetic resonance (FMR) measurements on WS2/CFA heterostructures capped with the 4 nm thin Al film. While Raman spectroscopy conclusively proves the number of monolayers in the WS2 films, atomic force microscopy and x-ray reflectivity measurements were used to quantify the smoothness of the grown interfaces (<0.4 nm) as well as the individual layer thicknesses in the heterostructure stacks. High-quality TMDs can be used as efficient materials for magnetic memory device applications. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1063/5.0107655
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