Please use this identifier to cite or link to this item:
Title: Superconducting properties of Tl1−yPbyCaSr2Cu2O7 : Role of Pb And Oxygen Stoichiometry
Authors: Vijayaraghavan, R
Rao, C N R
Keywords: TC
Oxygen Stoichiometry
monophasic superconducting compositions
hole concentration
Issue Date: Jul-1992
Publisher: Pergamon-Elsevier Science Ltd
Citation: Solid State Communications 83(1), 73-76 (1992)
Abstract: In the Tl1-yPbyCaSr2Cu2O7 system, monophasic superconducting compositions are form in t, range 0.25 < y < 0.60 and the minimum Pb content required to stabilize the tetragonal 1122 phase is about 25%. Maximum T(c) is found when y = 0.5, at which composition the hole concentration is optimal. Metallic compositions of Tl1-yPbyCaSr2Cu2O7 (y = 0.25) and Tl0.75Pb0.25Y1-XCaXSr2Cu2O7 (0.80 ≤ x ≤ 1.0) become superconducting on decreasing the oxygen content by vacuum annealing.
Description: Restricted Access
Other Identifiers: 0038-1098
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

Files in This Item:
File Description SizeFormat 
  Restricted Access
257.84 kBAdobe PDFView/Open Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.