Possible overdoping in TlSrLaCuO5 and superconductivity in TlBaLaCuO5 by isovalent-cation substitution

Sundaresan, A. ; Nagarajan, R. ; Gupta, L. C. ; Vijayaraghavan, R. ; Sharon, M. ; Tamhane, A. S. ; Pinto, R. (1994) Possible overdoping in TlSrLaCuO5 and superconductivity in TlBaLaCuO5 by isovalent-cation substitution Physical Review B: Condensed Matter and Materials Physics, 49 (18). pp. 13123-13126. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v49/i18/p13123_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.49.13123

Abstract

It is known that superconductivity in TlSrLaCuO5 is due to the overlap of empty Tl 6s band with the antibonding Cu 3dx2-y2 band at the Fermi level. This motivated us to investigate the effects of isovalent-cation substitution in superconducting TlSrLaCuO5 and semiconducting TlBaLaCuO5. We have succeeded in inducing superconductivity in TlBaLaCuO5 by introducing Ca2+ at the Ba sites.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:61596
Deposited On:15 Sep 2011 11:56
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