Search Results - "Passos, C.A.C."

The influence of oxygen partial pressure on growth of the (Hg,Re)-1223 intergrain junction by Oliveira, F.D.C., Passos, C.A.C., Fardin, J.F., Simonetti, D.S.L., Passamai, J.L., Belich, H., de Medeiros, E.F., Orlando, M.T.D., Ferreira, M.M.

“…Hg 0.82 Re 0.18 Ba 2 Ca 2 Cu 3 O 8+delta polycrystalline samples were successfully obtained by using different oxygen partial pressure in the annealing…”
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Sintering process and characterization of the SmBaCuO/Al composite by Nunes, L.G.S., Passos, C.A.C., Orlando, M.T.D., Chagas, J.V.S., Salustre, M.G.de M., Galvão, E.S.

“…•The (1-x)SmBa2Cu3O7-δ/(x)Al composite was prepared by solid state reaction.•The aim was combined mechanical and superconducting proprieties.•The composites…”
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Electronic phase separation and the inhomogeneities in Bi2212 by de Mello, E.V.L., Kasal, R.B., Passos, C.A.C., Filho, Otton S.T.

“…Recent works on scanning tunneling microscopy (STM) have shown how the measured local gaps vary in a Bi2212 family of samples with different hole doping levels…”
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Description of the transport critical current density behavior of polycrystalline superconductors as a function of the applied magnetic field by Passos, C.A.C., Orlando, M.T.D., Keller, G.L.L., Passamai, J.L., Ferreira, J.A., de Mello, E.V.L.

“…A model to describe the critical current density behavior of high-Tc polycrystalline superconductors is proposed for all magnetic field values. The main…”
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Effects of oxygen content on the pinning energy and critical current in the granular (Hg, Re)-1223 superconductors by Passos, C.A.C., Orlando, M.T.D., Fernandes, A.A.R., Oliveira, F.D.C., Simonetti, D.S.L., Fardin, J.F., Belich, H., Ferreira, M.M.

“…Hg 0.82Re 0.18Ba 2Ca 2Cu 3O 8+ d polycrystalline samples, with different oxygen content, were investigated by ac resistance measurements under different…”
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Effects of Y doping on the (Hg,Re)-1212 superconductor properties by Passos, C.A.C., Passamai, J.L., Orlando, M.T.D.

“…Hg 0.82Re 0.18Ba 2Ca x−1 Y x Cu 2O 6+ d samples were prepared with different yttrium (Y) content (0.05 < x < 0.55). The X-ray diffraction analysis has revealed…”
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An investigation of T ∗ behavior on (Hg,Re)-1223 system by Passos, C.A.C., Passamai, J.L., Orlando, M.T.D., de Mello, E.V.L.

“…(Hg,Re)-1223 samples were studied through electrical resistivity data with purpose to obtain values of the pseudogap temperature T ∗( n h), the layer coupling…”
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Application of the (Hg,Re)-1223 ceramic on superconducting fault current limiter by Passos, C.A.C., Passamai, J.L., Orlando, M.T.D., Medeiros, E.F., Sampaio, R.V., Oliveira, F.D.C., Fardin, J.F., Simonetti, D.S.L.

“…We have investigated a small resistive SFCL device based on Hg 0.8Re 0.2Ba 2Ca 2Cu 3O 8+ δ , (Hg,Re)-1223, ceramic in order to obtain in the future a SFCL…”
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Distortion of ReO6 octahedron in the Hg0.82Re0.18Ba2Ca2Cu3O8+d superconductor by Orlando, M.T.D., Passos, C.A.C., Passamai, J.L., Medeiros, E.F., Orlando, C.G.P., Sampaio, R.V., Correa, H.S.P., de Melo, F.C.L., Martinez, L.G., Rossi, J.L.

“…Rhenium (Re) LIII edge X-ray absorption spectroscopy was used in order to determine rhenium valence and the local oxygen coordination in…”
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Phase segregation of (Hg,Re)-1223 superconductor by Passos, C.A.C., Passamai, J.L., Orlando, M.T.D., Correa, H.P.S., de Medeiros, E.F., Martinez, L.G., Rossi, J.L., Garcia, F., Tamura, E., Ferreira, F.F., de Melo, F.C.L.

“…Synchrotron anomalous X-ray scattering confirmed that Re distribution on the Hg–O plane did not produce a super cell (2 a × 2 b × 1 c) in our Hg 0.8Re 0.2Ba…”
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Hg,Re-1223 system: Tc dependence on hydrostatic pressure and thermopower measurements by Orlando, M.T.D., de Mello, E.V.L., Passos, C.A.C., Caputo, M.R.C., Martinez, L.G., Zeini, B., Yugue, E.S., Vanoni, W., Baggio-Saitovitch, E.

“…Samples of Hg 1− x Re x Ba 2Ca 2Cu 3O 8+ δ superconductor (Hg,Re-1223) were prepared with varying rhenium (Re) nominal content (0.15⩽ x⩽0.20) in order to study…”
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