Manivannan, V and Vasanthacharya, NY and Gopalakrishnan, J (1991) $(Bi,Pb)_2(Sr,Ln)_2CuO_6$ $(Ln = La,Pr,Nd)$: New superconducting cuprates related to $Bi_2Sr_2CuO_6_+_y$. In: Materials Research Bulletin, 26 (5). pp. 349-355.
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Abstract
A new series of $BiPb$-cuprates of the formula $BiPbSrLnCuO_6(Ln = La,Pr,Nd)$, which are isotypic with the superconducting $Bi$-cuprate, $Bi_2Sr_2CuO_6_+y$, has been prepared. The new $BiPb$-cuprates are nonsuperconducting, but when doped with holes by replacing part of $Ln$ with $Sr$, superconducting cuprates of the formula $BiPbSr_1_+_xLn_1_-_xCuO_6$ showing a maximum $T_c$ of 25K for $Ln = La$ at x = 0.25 are obtained. Unlike the $Bi$-cuprates, the parent and the superconducting $BiPb$-cuprates are free from the structural modulation.
Item Type: | Journal Article |
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Publication: | Materials Research Bulletin |
Publisher: | Elsevier Science |
Additional Information: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Superconductors;bismuth;strontium;rare-earth;copper oxides |
Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
Date Deposited: | 23 Jun 2007 |
Last Modified: | 16 Jan 2012 09:56 |
URI: | http://eprints.iisc.ac.in/id/eprint/11241 |
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