Physical characterization and vibrational spectroscopy of Bi(Pb) cuprate 2212 ceramics prepared by sol-gel

Lina Ben-Dor; M. Y. Szerer; G. Blumberg; A. Givan; L. Börjesson; L. V. Hong

doi:10.1016/0921-4534(92)90396-T

Physical characterization and vibrational spectroscopy of Bi(Pb) cuprate 2212 ceramics prepared by sol-gel

Lina Ben-Dor^*, M. Y. Szerer, G. Blumberg, A. Givan, L. Börjesson, L. V. Hong

^*Corresponding author for this work

Institute of Chemistry

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16 Scopus citations

Abstract

Samples of bismuth cuprate with and without lead substitution were prepared by the sol-gel method. The general formula was Bi_2-xPb_xSr₂CaCu₂O_{8+ δ}, where 0≤x≤0.6. The samples were characterized by X-ray diffraction (XRD), electron probe microanalysis (EPMA), magnetic susceptibility, Raman spectroscopy and IR reflectance. Regarding homogeneity, density, purity and superconductivity, optimal behavior was found x = 0.2-0.4. An increase of hole concentration in the CuO₂-planes with Pb²⁺/Bi³⁺ ratio was observed from the optical data. The Raman spectra modifications with lead substitution are discussed. Evidence of the interaction between CuO₂-plane hole continuum and 150 cm^-1 IR active modes was found.

Original language	English
Pages (from-to)	418-424
Number of pages	7
Journal	Physica C: Superconductivity and its Applications
Volume	200
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(92)90396-T
State	Published - 1 Oct 1992

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title = "Physical characterization and vibrational spectroscopy of Bi(Pb) cuprate 2212 ceramics prepared by sol-gel",

abstract = "Samples of bismuth cuprate with and without lead substitution were prepared by the sol-gel method. The general formula was Bi2-xPbxSr2CaCu2O8+ δ, where 0≤x≤0.6. The samples were characterized by X-ray diffraction (XRD), electron probe microanalysis (EPMA), magnetic susceptibility, Raman spectroscopy and IR reflectance. Regarding homogeneity, density, purity and superconductivity, optimal behavior was found x = 0.2-0.4. An increase of hole concentration in the CuO2-planes with Pb2+/Bi3+ ratio was observed from the optical data. The Raman spectra modifications with lead substitution are discussed. Evidence of the interaction between CuO2-plane hole continuum and 150 cm-1 IR active modes was found.",

author = "Lina Ben-Dor and Szerer, {M. Y.} and G. Blumberg and A. Givan and L. B{\"o}rjesson and Hong, {L. V.}",

year = "1992",

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T1 - Physical characterization and vibrational spectroscopy of Bi(Pb) cuprate 2212 ceramics prepared by sol-gel

AU - Ben-Dor, Lina

AU - Szerer, M. Y.

AU - Blumberg, G.

AU - Givan, A.

AU - Börjesson, L.

AU - Hong, L. V.

PY - 1992/10/1

Y1 - 1992/10/1

N2 - Samples of bismuth cuprate with and without lead substitution were prepared by the sol-gel method. The general formula was Bi2-xPbxSr2CaCu2O8+ δ, where 0≤x≤0.6. The samples were characterized by X-ray diffraction (XRD), electron probe microanalysis (EPMA), magnetic susceptibility, Raman spectroscopy and IR reflectance. Regarding homogeneity, density, purity and superconductivity, optimal behavior was found x = 0.2-0.4. An increase of hole concentration in the CuO2-planes with Pb2+/Bi3+ ratio was observed from the optical data. The Raman spectra modifications with lead substitution are discussed. Evidence of the interaction between CuO2-plane hole continuum and 150 cm-1 IR active modes was found.

AB - Samples of bismuth cuprate with and without lead substitution were prepared by the sol-gel method. The general formula was Bi2-xPbxSr2CaCu2O8+ δ, where 0≤x≤0.6. The samples were characterized by X-ray diffraction (XRD), electron probe microanalysis (EPMA), magnetic susceptibility, Raman spectroscopy and IR reflectance. Regarding homogeneity, density, purity and superconductivity, optimal behavior was found x = 0.2-0.4. An increase of hole concentration in the CuO2-planes with Pb2+/Bi3+ ratio was observed from the optical data. The Raman spectra modifications with lead substitution are discussed. Evidence of the interaction between CuO2-plane hole continuum and 150 cm-1 IR active modes was found.

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Physical characterization and vibrational spectroscopy of Bi(Pb) cuprate 2212 ceramics prepared by sol-gel

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