skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Synthesis of cuprates of perovskite structure in the Ba-Pb-Cu-O, Ba-Bi-CU-O, and Ba-Pb-TI-Cu-O systems: Possible high T[sub c] superconductivity in a perovskite-like phase in the Ba-Pb-TI-Cu-O system

Abstract

Cubic cuprates (a [approximately] 18.6 [angstrom]) with a BaCuO[sub 2]-type structure were obtained in the Ba-Pb-Cu-O and Ba-Bi-Cu-O systems by the reaction of the component oxides at a high temperature (1370-1420 K), followed by quenching. By annealing these phases in oxygen at 1070-1120 K, perovskite-like phase (a [approximately] 4.3 [angstrom]) of the formulae BaPb[sub 1[minus]x]Cu[sub x]O[sub 3[minus]y] and BaBi[sub 1[minus]x]Cu[sub x]O[sub 3[minus]y] (0 < x [le] 0.5) were obtained. A perovskite of nominal composition BaPb[sub 0.25]TI[sub 0.25]Cu[sub 0.5]O[sub 3[minus]y], prepared by a similar procedure, was found to be superconducting with a T[sub c] of [approximately] 70 K.

Authors:
; ;  [1]
  1. Indian Institute of Science, Bangalore (India)
Publication Date:
OSTI Identifier:
6621450
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry; (United States)
Additional Journal Information:
Journal Volume: 109:1; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BARIUM COMPOUNDS; CHEMICAL PREPARATION; CRITICAL TEMPERATURE; BISMUTH COMPOUNDS; CUPRATES; LEAD COMPOUNDS; THALLIUM COMPOUNDS; ANNEALING; HIGH-TC SUPERCONDUCTORS; ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; HEAT TREATMENTS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; SYNTHESIS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; 360207* - Ceramics, Cermets, & Refractories- Superconducting Properties- (1992-); 360201 - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Manivannan, V, Gopalakrishnan, J, and Rao, C N.R. Synthesis of cuprates of perovskite structure in the Ba-Pb-Cu-O, Ba-Bi-CU-O, and Ba-Pb-TI-Cu-O systems: Possible high T[sub c] superconductivity in a perovskite-like phase in the Ba-Pb-TI-Cu-O system. United States: N. p., 1994. Web. doi:10.1006/jssc.1994.1093.
Manivannan, V, Gopalakrishnan, J, & Rao, C N.R. Synthesis of cuprates of perovskite structure in the Ba-Pb-Cu-O, Ba-Bi-CU-O, and Ba-Pb-TI-Cu-O systems: Possible high T[sub c] superconductivity in a perovskite-like phase in the Ba-Pb-TI-Cu-O system. United States. doi:10.1006/jssc.1994.1093.
Manivannan, V, Gopalakrishnan, J, and Rao, C N.R. Tue . "Synthesis of cuprates of perovskite structure in the Ba-Pb-Cu-O, Ba-Bi-CU-O, and Ba-Pb-TI-Cu-O systems: Possible high T[sub c] superconductivity in a perovskite-like phase in the Ba-Pb-TI-Cu-O system". United States. doi:10.1006/jssc.1994.1093.
@article{osti_6621450,
title = {Synthesis of cuprates of perovskite structure in the Ba-Pb-Cu-O, Ba-Bi-CU-O, and Ba-Pb-TI-Cu-O systems: Possible high T[sub c] superconductivity in a perovskite-like phase in the Ba-Pb-TI-Cu-O system},
author = {Manivannan, V and Gopalakrishnan, J and Rao, C N.R.},
abstractNote = {Cubic cuprates (a [approximately] 18.6 [angstrom]) with a BaCuO[sub 2]-type structure were obtained in the Ba-Pb-Cu-O and Ba-Bi-Cu-O systems by the reaction of the component oxides at a high temperature (1370-1420 K), followed by quenching. By annealing these phases in oxygen at 1070-1120 K, perovskite-like phase (a [approximately] 4.3 [angstrom]) of the formulae BaPb[sub 1[minus]x]Cu[sub x]O[sub 3[minus]y] and BaBi[sub 1[minus]x]Cu[sub x]O[sub 3[minus]y] (0 < x [le] 0.5) were obtained. A perovskite of nominal composition BaPb[sub 0.25]TI[sub 0.25]Cu[sub 0.5]O[sub 3[minus]y], prepared by a similar procedure, was found to be superconducting with a T[sub c] of [approximately] 70 K.},
doi = {10.1006/jssc.1994.1093},
journal = {Journal of Solid State Chemistry; (United States)},
issn = {0022-4596},
number = ,
volume = 109:1,
place = {United States},
year = {1994},
month = {3}
}