56702 20200221144313.0 doi 10.1063/1.4955031 sideral 95579 ART-2016-95579 eng (orcid)0000-0001-5939-6415 Anadon. A. Universidad de Zaragoza Characteristic length scale of the magnon accumulation in Fe3O4/Pt bilayer structures by incoherent thermal excitation 2016 Access copy available to the general public Unrestricted The dependence of Spin Seebeck effect (SSE) with the thickness of the magnetic materials is studied by means of incoherent thermal excitation. The SSE voltage signal in Fe3O4/Pt bilayer structure increases with the magnetic material thickness up to 100¿nm, approximately, showing signs of saturation for larger thickness. This dependence is well described in terms of a spin current pumped in the platinum film by the magnon accumulation in the magnetic material. The spin current is generated by a gradient of temperature in the system and detected by the Pt top contact by means of inverse spin Hall effect. Calculations in the frame of the linear response theory adjust with a high degree of accuracy the experimental data, giving a thermal length scale of the magnon accumulation (¿) of 17¿±¿3¿nm at 300¿K and ¿¿=¿40¿±¿10¿nm at 70¿K. info:eu-repo/grantAgreement/ES/DGA/E26-304043 info:eu-repo/grantAgreement/ES/MINECO/MAT2014-51982-C2-1-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.411 2016 PHYSICS, APPLIED 28 / 147 = 0.19 2016 Q1 T1 1.673 2016 Physics and Astronomy (miscellaneous) 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ramos, R. (orcid)0000-0003-0271-8713 Lucas, I. Universidad de Zaragoza (orcid)0000-0002-4698-3378 Algarabel, P. A. Universidad de Zaragoza (orcid)0000-0003-3724-508X Morellon, L. Universidad de Zaragoza (orcid)0000-0003-0681-8260 Ibarra, M. R. Universidad de Zaragoza (orcid)0000-0002-1296-4793 Aguirre, M. H. Universidad de Zaragoza 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 109, 1 (2016), 012404 Appl. phys. lett. APPLIED PHYSICS LETTERS 0003-6951 551972 http://zaguan.unizar.es/record/56702/files/texto_completo.pdf Postprint 120697 http://zaguan.unizar.es/record/56702/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:56702 articulos driver 2020-02-21-13:38:35 ARTICLE