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Get Free AccessEffect of substitution of Ca by Y on the properties of TlCaBa2Cu2O7 (1122) and Bi2CaSr2Cu2O8+δ (2122) has been studied. Lattice parameters vary progressively with increase in Y concentration in both the systems. In TlCa1−xYxBa2Cu2O7+δ , compositions with x ≤ 0.5 are superconducting. In Bi2Ca1−xYxSr2Cu2O8+δ , compositions with x <0.5 are superconducting; oxides of both these systems become semiconducting for higher values of x. In Bi-(Ca, Y, Sr)3 Cu2O8+δ , Tc decreases with the increasing Y/Ca ratio becoming zero at a finite value of the ratio.
A.K. Ganguli, R. Nagarajan, K.S. Nanjundaswamy, Cnr Rao (1989). Superconductivity in BiCaYSrCuO (2122) and TlCaYBaCuO (1122) systems: Effect of substitution of Ca by Y. Materials Research Bulletin, 24(1), pp. 103-109, DOI: 10.1016/0025-5408(89)90015-9.
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Type
Article
Year
1989
Authors
4
Datasets
0
Total Files
0
Language
English
Journal
Materials Research Bulletin
DOI
10.1016/0025-5408(89)90015-9
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