Manivannan, V. ; Gopalakrishnan, J. ; Rao, C. N. R. (1991) Modulation-free bismuth-lead cuprate superconductors: BiPbSr1+xL1−xCuO6 and BiPbSr2Y1-xCaxCu2O8 Physical Review B: Condensed Matter and Materials Physics, 43 (10). pp. 8686-8689. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v43/i10/p8686_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.43.8686
Abstract
Modulation-free BiPbSrLCuO6 (L=La, Pr, Nd) and BiPbSr2YCu2O8, which are isotypic with the n=1 and 2 members of the Bi2Sr2Can-1CunO2n+4 family, have been prepared and characterized. These parent compounds are nonsuperconducting, but when doped with holes by substitution chemistry give modulation-free superconducting cuprates of the general formulas BiPbSr1+xL1-xCuO6 and BiPbSr2Y1-xCaxCu2O8, exhibiting maximum Tc's of 24 and 85 K, respectively. Significantly, the hole concentration at the maximum Tc is 0.12 in the cuprate family with a single Cu-O layer and 0.22 in that with two Cu-O layers.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 39945 |
| Deposited On: | 20 May 2011 08:07 |
| Last Modified: | 27 May 2011 12:05 |
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