Serrano, A.Rodrıguez de la Fuente, OscarGarcıa Hernandez, M.Campo, G.Julian Fern andez, C. deFernandez, J. F.Garcıa, M. A.2023-06-172023-06-172018-09-100003-695110.1063/1.5044697https://hdl.handle.net/20.500.14352/12267© Amer Inst Physics. This project was supported by a 2016 BBVA Foundation Grant for Researchers and Cultural Creators. This work was also supported by the Ministerio Español de Economıa y Competitividad (MINECO) through Project Nos. MAT2017-86540-C4-1-R, MAT2014-52405-C02- 02, and CSIC 20150E068. A.S. acknowledges the Comunidad de Madrid for the financial support (Grant No. 2017-t2/IND5395)IIn this work, we present an innovative way to functionalize large surfaces combining both plasmonic and magnetic nanoparticles on a substrate, by the growth of bilayers and a subsequent single annealing. In particular, we show here the formation of Au and gamma- Fe₂O₃ nanoparticles using this route. Thermal treatments promote the nanostructuration of the film plus a partial oxidation of Fe to form ferrimagnetic oxides. For this purpose, annealing conditions and the structure of the bilayer must be selected to achieve an optimal nanostructuration, avoiding the full oxidation of Fe to form antiferromagnetic hematite. Published by AIP Publishing.engjournal articlehttp://dx.doi.org/10.1063/1.5044697https://aip.scitation.orgopen access538.9Iron-oxideGold nanoparticlesHematiteRamanFilmsPhotoanodesAlpha-Fe₂O₃ScatteringDiffusionModesFísica de materialesFísica del estado sólido2211 Física del Estado Sólido