Tl1−xPbxCaSr2Cu2O7: another 1122 high-Tc superconductor

Ganguli, A. K. ; Nanjundaswamy, K. S. ; Rao, C. N. R. (1988) Tl1−xPbxCaSr2Cu2O7: another 1122 high-Tc superconductor Physica C: Superconductivity, 156 (5). pp. 788-790. ISSN 0921-4534

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/092145...

Related URL: http://dx.doi.org/10.1016/0921-4534(88)90161-X

Abstract

The 1122 member of the Tl(Ca, Sr)n+1CunO2n+3 system is stabilized by partial substitution of Tl by Pb. Tl1−xPbxCaSr2Cu2O7 with x=0.25 and 0.5 have both primitive tetragonal structures (c 12.1 Å) showing onset of superconductivity around 70 K and 90 K, respectively.

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