$(Bi,Pb)_2(Sr,Ln)_2CuO_6$ $(Ln = La,Pr,Nd)$: New superconducting cuprates related to $Bi_2Sr_2CuO_6_+_y$

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
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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