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Your search keyword '"Balamurugan, S."' showing total 13 results
Start Over Author "Balamurugan, S." Journal journal of superconductivity
13 results on '"Balamurugan, S."'

12. On the Presence of Cu1+ in the Superconducting (Hg,M)Sr2CuO4+δ; M = Cr, Mo, or Re.

Author

Balamurugan, S., Prakash, O., Padalia, B., Gopalakrishnan, I., Yakhmi, J., and Selvam, P.

Abstract

The Cu K-edge measurements on the optimum Tc 1201 compounds (Hg1− xM x)Sr2CuO4+δ (M = Cr, Mo, or Re; 0.10 ≤ x ≤ 0.30) show besides Cu2+ (predominant) a very weak but distinct signature of Cu1+, only in the superconducting (SC) samples. The Cu1+ feature is conspicuously absent when these compositions are non-superconducting because of different processing conditions. Our finding of monovalent Cu in SC (Hg,M)/Sr-1201 favors the presence of Cu at the Hg-site and this seems to facilitate superconductivity in these cuprates. [ABSTRACT FROM AUTHOR]

Published
2003
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13. On the Presence of Cu1+in the Superconducting (Hg,M)Sr2CuO4+δ; M = Cr, Mo, or Re

Author

Balamurugan, S., Prakash, O., Padalia, B., Gopalakrishnan, I., Yakhmi, J., and Selvam, P.

Abstract

The Cu K-edge measurements on the optimum Tc1201 compounds (Hg1−xMx)Sr2CuO4+δ(M = Cr, Mo, or Re; 0.10 ≤ x ≤ 0.30) show besides Cu2+(predominant) a very weak but distinct signature of Cu1+, only in the superconducting (SC) samples. The Cu1+feature is conspicuously absent when these compositions are non-superconducting because of different processing conditions. Our finding of monovalent Cu in SC (Hg,M)/Sr-1201 favors the presence of Cu at the Hg-site and this seems to facilitate superconductivity in these cuprates.

Published
2003
Full Text
View/download PDF

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