128012 20241125101129.0 doi 10.1016/j.jallcom.2023.171975 sideral 135205 ART-2023-135205 eng Laguna–Marco, M. A. (orcid)0000-0003-4069-0395 Novel Ir1–xCoxO2 thin films: Growth and characterization 2023 Access copy available to the general public Unrestricted Ir1–xCoxO2 thin films have been prepared by reactive co–sputtering deposition at room temperature. Composition, structure, electronic properties and electric and magnetic behavior have been analyzed by different techniques including XRR, XRD, TEM microscopy, SQUID magnetometry, electrical resistivity and XAS spectroscopy. After annealing, an Ir1–xCoxO2 substitutional solid solution phase with rutile crystal structure was achieved for a wide Co-doping range 0 ≤ x ≤ 0.6. Starkly departing from the highly insulating behavior of CoO and Co3O4, the electrical resistivity at room temperature of our films is only slightly higher than that of IrO2. Likewise, our work shows that the magnetic response of the doped films is very similar to that of the paramagnetic parent IrO2. Neither ferromagnetism nor enhanced paramagnetism is observed. XAS spectra indicate a Co3+ oxidation state and, correspondingly, an oxidation state of ∼5+ for Ir ions in the polycrystalline Ir0.6Co0.4O2 film. By application of sum rules, a 13 % increase in the spin–orbit coupling is found despite the lattice shrinkage causes a detrimental bandwidth broadening. info:eu-repo/grantAgreement/ES/DGA-FSE/E12-23R-RASMIA info:eu-repo/grantAgreement/ES/AEI/PID2020-115159GB-I00/AEI/10.13039/501100011033 info:eu-repo/grantAgreement/EC/H2020/101007825/EU/ULtra ThIn MAgneto Thermal sEnsor-Ing/ULTIMATE-I This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007825-ULTIMATE-I info:eu-repo/grantAgreement/EC/H2020/730872/EU/Convenient Access to Light Sources Open to Innovation, Science and to the World/CALIPSOplus This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 730872-CALIPSOplus info:eu-repo/grantAgreement/EC/H2020/872631 /EU/Memristive and multiferroic materials for emergent logic units in nanoelectronics/MELON This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 872631 -MELON info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 5.8 2023 MATERIALS SCIENCE, MULTIDISCIPLINARY 109 / 439 = 0.248 2023 Q1 T1 METALLURGY & METALLURGICAL ENGINEERING 8 / 90 = 0.089 2023 Q1 T1 CHEMISTRY, PHYSICAL 51 / 178 = 0.287 2023 Q2 T1 1.103 2023 Materials Chemistry 2023 Q1 Metals and Alloys 2023 Q1 Mechanics of Materials 2023 Q1 Mechanical Engineering 2023 Q1 11.1 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Herrero-Albillos, J. Universidad de Zaragoza (orcid)0000-0002-0901-8341 Aguirre, M. H. Universidad de Zaragoza (orcid)0000-0002-1296-4793 Rueda-Jiménez, M. Mikulska, I. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 968 (2023), 171975 [7 pp.] J. alloys compd. JOURNAL OF ALLOYS AND COMPOUNDS 0925-8388 3337730 http://zaguan.unizar.es/record/128012/files/texto_completo.pdf Versión publicada 2631661 http://zaguan.unizar.es/record/128012/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:128012 articulos driver 2024-11-22-11:58:29 ARTICLE