109374 20230519145428.0 doi 10.1088/1361-6463/ac0ca5 sideral 124562 ART-2021-124562 eng Sangiao Barral, Soraya Universidad de Zaragoza (orcid)0000-0002-4123-487X Optimization of YIG/Bi stacks for spin-to-charge conversion and influence of aging 2021 Access copy available to the general public Unrestricted We show that an optimized growth of magnetic layer/non-magnetic layer stacks allows for the improvement of the spin-to-charge conversion efficiency. From the analysis of the voltage signal generated in spin pumping experiments due to the inverse spin Hall effect (ISHE) on Y3Fe5O12 (YIG)/Bi stacks, we have determined values for the spin Hall angle and the spin-diffusion length in Bi of 0.0068(8) and 17.8(9) nm, respectively. Based on these results, we have also studied the influence of aging on the spin-to-charge conversion efficiency by performing spin pumping experiments on YIG/Bi stacks after exposing the samples to ambient conditions for several days and up to 150 days. We have found that in YIG/Bi samples with Bi thicknesses around or below the spin-diffusion length, the ISHE voltage signal is still above 80% of its initial value after 100 days. info:eu-repo/grantAgreement/ES/DGA-FSE/E13-20R info:eu-repo/grantAgreement/ES/MEC/FPU014-02546 info:eu-repo/grantAgreement/ES/MICINN/MAT2017-82970-C2-1-R info:eu-repo/grantAgreement/ES/MICINN/MAT2017-82970-C2-2-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.409 2021 PHYSICS, APPLIED 61 / 161 = 0.379 2021 Q2 T2 0.717 2021 Acoustics and Ultrasonics 2021 Q1 Surfaces, Coatings and Films 2021 Q1 Electronic, Optical and Magnetic Materials 2021 Q1 5.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Morales Aragonés, José Ignacio Lucas del Pozo, Irene Universidad de Zaragoza (orcid)0000-0003-0271-8713 Jiménez Cavero, Pilar (orcid)0000-0003-0400-8600 Morellón Alquézar, Luis Universidad de Zaragoza (orcid)0000-0003-3724-508X Sánchez Azqueta, Carlos Universidad de Zaragoza (orcid)0000-0002-8236-825X De Teresa Nogueras, José María Universidad de Zaragoza (orcid)0000-0001-9566-0738 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 54, 37 (2021), 375305 [7 pp.] J. phys., D. Appl. phys., JPhysD JOURNAL OF PHYSICS D-APPLIED PHYSICS 0022-3727 918094 http://zaguan.unizar.es/record/109374/files/texto_completo.pdf Postprint 2048777 http://zaguan.unizar.es/record/109374/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:109374 articulos driver 2023-05-18-14:14:54 ARTICLE