Writers: Garcia-Fornaris, I. ; Millan, H. ; Jardim, R. F., Govea-Alcaide Keywords: superconductors; Abstract: We investigated the transport Barkhausen-like noise (TBN) by using nonlinear time series analysis. TBN signals were measured in (Bi,Pb)2Sr2Ca2Cu3O10+δ ceramic samples subjected to different […]
Writers: A. M. Rosa; E. P. da Silva; M. ChavesL. D. Trino; P. N. Lisboa-Filho; T. F. da Silva; S. F. Durrant; and J. R. R. Bortoleto Keywords: rf-Magnetron sputtering; Structural transitions; Substrate temperature; Transmittance […]
Writers: Daniel Komatsu, Caio Marcio Paranhos, Tiago Venancio, Adhemar Ruvolo-Filho Keywords: Nanocomposites Abstract: Linear low-density polyethylene (LLDPE)/montmorillonite clay (MMT) nanocomposites were obtained by dilution of a master batch containing 20.0% clay content in a twin screw extruder […]
Writers: E. Longo, L. S. Cavalcante, D. P. Volanti, A. F. Gouveia, V. M. Longo, J. A. Varela, M. O. Orlandi, J. Andrés Keywords: synthesis; crystals; materials science Abstract: In this letter, we report, for the first time, the […]
Writers: D. Melo; F.T.G. Vieira; T.C.C. Costa; L.E.B. Soledade; C.A. Paskocimas; D.M.A. Melo; E. Longo; E.P. Marinho; A.G. Souza; I.M.G. Santos Keywords: Polymeric precursor method; Perovskite; Black pigment; Lanthanum; Cobaltite; Solid solution Abstract: In this […]
Writers: L.S. Cavalcante; N.C.Batista a, T.Badapanda; M.G.S.Costa; M.S.Li; W.Avansi; V.R.Mastelaro; E.Longo; J.W.M.Espinosa; M.F.C.Gurgel Keywords: Defects; Density functional theory calculations; X-ray absorption near-edge structure; Crystal structure; Optical properties Abstract: Ba(Zr0.75Ti0.25)O3 (BZT-75/25) powders were synthesized by the […]
Writers: Larisa B. Arruda; Marcelo O. Orlandi; Paulo Noronha Lisboa-Filho Keywords: Semiconductors; Nanoparticles; ZnO; Amorphous; Electron microscopy Abstract: Application of nanoscale materials in photovoltaic and photocatalysis devices and photosensors are dramatically affected by surface morphology […]
Writers: Marco A. L. Cordeiro; Weihao Weng; Daniel G. Stroppa; Christopher J. Kiely; and Edson R. Leite Keywords: CeO2; HAADF-STEM; HRTEM; nanocrystals Abstract: In this research, high resolution transmission electron microscopy (HRTEM) and high angle […]
Writers: Barbara Fraygola; Alexandre Mesquita; Adelino A. Coelho; Ducinei Garcia; Valmor R. Mastelaro; and Jose A. Eiras Keywords: anelastic; multiferroics; PFN; PFW; XANES Abstract: Lead-based multiferroics perovskites with nominal compositions Pb(Fe1/2Nb1/2)O3 and Pb(Fe2/3W1/3)O3 were synthesized […]
Writers: Felipe A. La Porta; Mateus M. Ferrer; Yuri V.B. de Santana; Cristiane W. Raubach; Valéria M. Longo; Júlio R. Sambrano; Elson Longo; Juan Andrés; Máximo S. Li; José A. Varela. Keywords: ZnS; Microwave; Optical […]
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