Search Results - "Araujo, E. B."

Interplay between cation composition and charge transport characteristics in GAxFAyMA1-x-yPbI3 halide perovskites by Minussi, F. B., Silva, R. M., Araújo, E. B.

“…Halide perovskites (HPs) are a well-known class of mixed electronic and ionic conductors with diverse applications in optoelectronic devices. The simultaneous…”
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Exploring the electromechanical response and electric field-induced dielectric anomalies in PMN–PT electroceramics by Guerra, J. D. S., Guarany, C. A., Lima, E. C., Araújo, E. B., Garcia, J. E.

“…Electromechanical and dielectric properties of PMN–PT ferroelectric ceramics are investigated. In particular, dielectric response studies focus on the…”
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Phase stability and properties of Bi6Te2O13+δ (δ = 0 or 2) by Ferreira, K.D., Gasparotto, G., Maia, L.J.Q., Reis, S.P., Araújo, E.B., Carvalho, J.F.

“…The crystalline Bi6Te2O15 and Bi6Te2O13 phases with orthorhombic and cubic symmetries, respectively, were synthesized by solid-state reaction synthesis. A…”
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Fabrication and operational characteristics of step-down piezoelectric transformer based on PMN-PT ceramics by Magalhães, A. L., Oliveira, A. F., Sales, A. J. M., Aquino, F. J. A., Gouveia, D. X., Menezes, J. W. M., Araújo, E. B., Sombra, A. S. B.

“…A ring-type step-down piezoelectric transformer based on 0.65Pb(Mg1/2Nb2/3)O3-0.35PbTiO3 ceramic was manufactured to study its main operational characteristics…”
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Imprint effect in PZT thin films at compositions around the morphotropic phase boundary by Araujo, E. B., Lima, E. C., Bdikin, I. K., Kholkin, A. L.

“…Piezoeresponse force microscopy (PFM) and local piezoresponse hysteresis loops were used to study the imprint effect in PbZr 1-x Ti x O 3 thin films at…”
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Rapid and accurate assessment of the activity measurements in Brazilian hospitals and clinics by de Oliveira, A.E., Iwahara, A., da Cruz, P.A.L., da Silva, C.J., de Araújo, E.B., Mengatti, J., da Silva, R.L., Trindade, O.L.

“…Traceability in Nuclear Medicine Service (NMS) measurements was checked by the Institute of Radioprotection and Dosimetry (IRD) through the Institute of Energy…”
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Effects of lanthanum modification on dielectric properties of Pb(Zr0.90,Ti0.10)O3 ceramics: enhanced antiferroelectric stability by Peláiz-Barranco, A., Guerra, J. D. S., García-Zaldívar, O., Calderón-Piñar, F., Araújo, E. B., Hall, D. A., Mendoza, M. E., Eiras, J. A.

“…Lanthanum modified lead zirconate titanate ceramics with lanthanum content changing from 2 to 6 at% La and a Zr/Ti ratio of 90/10 (PLZT x /90/10) have been…”
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Effect of Composition on the Physical Properties at Nanoscale of PZT Thin Films by Lima, E. C., Araújo, E. B., Bdikin, I. K., Kholkin, A. L.

“…PbZr 1−x Ti x O 3 (PZT) thin films (x = 0.46, 0.47, 0.48, 0.49, and 0.50) were deposited on Pt/TiO 2 /SiO 2 /Si substrates using a polymeric chemical method to…”
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Studies on synthesis, Raman, and electrical properties of novel spinel high entropy ceramics by Mishra, Rajesh K., Araújo, E. B., Shahi, Rohit R.

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Effects of frequency, temperature, and dc bias electric field on the dielectric properties of methylammonium lead iodide from the perspective of a relaxor-like ferroelectric by Minussi, F.B., Reis, S.P., Araújo, E.B.

“…This work reports dielectric properties of methylammonium lead iodide as a function of frequency, temperature, and dc bias electric field studied in terms of…”
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Non-isothermal studies on crystallization kinetics of tellurite 20Li2O-80TeO2 glass by Araújo, E. B., Idalgo, E.

“…Structural and thermal properties of the 20Li 2 O-80TeO 2 glass were studied using X-ray diffraction analysis and differential scanning calorimetry techniques…”
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Preparation of [In-111]-labeled-DTPA-bombesin conjugates at high specific activity and stability: Evaluation of labeling parameters and potential stabilizers by Pujatti, P.B., Massicano, A.V.F., Mengatti, J., de Araújo, E.B.

“…The aim of the present work was to obtain stabilized high specific activity (HSA) 111In-labeled bombesin conjugates for preclinical evaluations. Parameters…”
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Effect of the DC-bias electric field on the phase transition characteristics in PMN ceramics by Lima, E. C., Guerra, J. D. S., Araujo, E. B.

“…Relaxor ferroelectrics play an important role for technological applications, mainly for using in the fabrication of actuators, transducers and sensors…”
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Dielectric investigations in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films by Santos, I. A., Mendes, R. G., Eiras, J. A., de Los S. Guerra, J., Araújo, E. B.

“…The dielectric properties of Sr 0.75 Ba 0.25 Nb 2 O 6 relaxor ferroelectric thin films were carefully analyzed. In contrast to bulk samples which present three…”
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Effects of the postannealing atmosphere on the dielectric properties of (Ba, Sr)TiO3 capacitors: Evidence of an interfacial space charge layer by Pontes, F. M., Leite, E. R., Longo, E., Varela, J. A., Araujo, E. B., Eiras, J. A.

“…The dielectric properties of (Ba, Sr)TiO3 films were found to be remarkably sensitive to the postannealing treatment atmosphere. This study demonstrates that…”
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Processing of BiFeO3 thin films to control their dielectric response by Reis, S. P., Freitas, F. E., Araújo, E. B.

“…BiFeO 3 (BFO) thin films were studied to control their oxygen-related processing parameters in order to obtain specific electrical characteristics in terms of…”
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Impact of defects on the electrical properties of BiFeO3 thin films by Reis, S. P., Araujo, E. B.

“…The impact of defects on the electrical properties of bismuth ferrite thin films has been studied. Secondary phases and oxygen vacancies were the main defects…”
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Dielectric relaxation and electrical conductivity of random oriented BiFeO3 thin films by Reis, S. P., Araujo, E. B.

“…Complex impedance and electric modulus spectroscopies were used to investigate the dielectric relaxation and conductivity of random oriented BiFeO 3 thin…”
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DSC studies on crystallization mechanisms of tellurite glasses by Yukimitu, K., Oliveira, R.C., Araújo, E.B., Moraes, J.C.S., Avanci, L.H.

“…The purpose of this work is to study the 20Li 2O–80TeO 2 glass using the differential scanning calorimetry (DSC) and X-ray diffraction (XRD) techniques in…”
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On the influence of pyrochlore phase on ferroelectric and dielectric properties of PZT thin films by Lima, E. C., Araujo, E. B., Eiras, J. A.

“…The intrinsic contribution of dielectric permittivity was obtained in thin films of PZT pyrolyzed at different temperatures. Pyrochlore phases were observed in…”
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