Nagarajan, R and Vasanthacharya, NY and Gopalakrishnan, J and Rao, CNR (1991) Superconductivity in Ba(Pb,Bi,Sb)O3, Ba(Pb,Bi,Te)O3 and (Ba,La) (Pb,Bi,Tl)O3 systems. In: Solid State Communications, 77 (5). pp. 373-376.
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It is possible to substitute Bi in the superconducting BaPb0.75Bi0.25O3 by Sb or Te without destroying the superconductivity. With Sb, a continuous series of solid solutions BaPb0.75Bi0.25?ySbyO3 (0 less-than-or-equals, slant y less-than-or-equals, slant 0.25) exists, while with Te, perovskite BaPb0.75Bi0.25?yTeyO3 exists only upto y = 0.15. With increasing substitution by Sb or Te, Tc decreases continously in both the systems. Superconductivity with a maximum Tc of 8K is found in Ba0.9La0.1Pb0.9?yBiyTl0.1O3 for y = 0.25.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier science.|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||30 Nov 2010 14:04|
|Last Modified:||01 Dec 2010 05:45|
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