G
G. de M. Azevedo
Researcher at Universidade Federal do Rio Grande do Sul
Publications - 50
Citations - 778
G. de M. Azevedo is an academic researcher from Universidade Federal do Rio Grande do Sul. The author has contributed to research in topics: Amorphous solid & Extended X-ray absorption fine structure. The author has an hindex of 17, co-authored 49 publications receiving 736 citations. Previous affiliations of G. de M. Azevedo include Federal University of Paraná & Australian National University.
Papers
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Journal ArticleDOI
Coloration Mechanism in Proton-Intercalated Electrochromic Hydrated NiOy and Ni1-xVxOy Thin Films
E. Avendaño,Håkan Rensmo,Andris Azens,Anders Sandell,G. de M. Azevedo,Hans Siegbahn,Gunnar A. Niklasson,Claes-Göran Granqvist +7 more
TL;DR: In this article, the electrochromic films of nickel oxide, with and without vanadium, were prepared by reactive dc magnetron sputtering and characterized by electrochemical and optical measurements.
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Cation distribution in copper ferrite nanoparticles of ferrofluids: A synchrotron XRD and EXAFS investigation
Juliano de Andrade Gomes,Marcelo Henrique Sousa,G.J. da Silva,F.A. Tourinho,J. Mestnik-Filho,Rosangela Itri,G. de M. Azevedo,Jerome Depeyrot +7 more
TL;DR: In this article, the structural characterization of a copper ferrite nanoparticle sample, prepared by coprecipitation method, on both short (EXAFS) and long range (XRD) scales is reported.
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Ion-Irradiation-Induced Preferential Amorphization of Ge Nanocrystals in Silica
Mark C Ridgway,G. de M. Azevedo,Robert Elliman,Christopher Glover,David Llewellyn,Ron L. Miller,Werner Wesch,Garry J Foran,J. L. Hansen,Arne Nylandsted-Larsen +9 more
TL;DR: In this article, the atomic-scale structure of Ge nanocrystals in a silica matrix is first shown to deviate from that of bulk crystalline material with an increase in both Gaussian and non-Gaussian forms of structural disorder.
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Impact-parameter dependent energy loss of screened ions
TL;DR: In this paper, a simple model for the electronic energy loss as a function of the impact parameter for screened projectiles at high velocities is described, where the physical inputs are the projectile screening potential, the electronic density and the oscillators strengths for the target electrons.
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Co-Substitution Effects on the Fe Valence in the BaFe 2 As 2 Superconducting Compound: A Study of Hard X-Ray Absorption Spectroscopy
E. M. Bittar,Cris Adriano,T. M. Garitezi,Priscila Rosa,L. Mendonça-Ferreira,F. Garcia,G. de M. Azevedo,P. G. Pagliuso,P. G. Pagliuso,Eduardo Granado +9 more
TL;DR: The Fe K x-ray absorption near edge structure of BaFe(2-x)Co(x)As(2) superconductors was investigated and no appreciable alteration in shape or energy position of this edge was observed with Co substitution.