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The Dependence of Tc on Structural and Electronic Parameters for Ceramic High-Tc Superconductors

Published online by Cambridge University Press:  28 February 2011

B.C. Giessen and
R.S. Markiewtcz
B.C. Giessen
Affiliation:
Northeastern University, Dept. of Chemistry and Barnett Institute (Materials Science Division), 360 Huntington Avenue, Boston, MA 02115
R.S. Markiewtcz
Affiliation:
Northeastern University, Dept. of Physics and Barnett Institute (Materials Science Division), 360 Huntington Avenue, Boston, MA 02115
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Abstract

Based on the description of high-Tc cuprate superconductors as intercalation compounds and the van Hove singularity (vHs) concept for these phases, [with its consequences concerning their density of states (dos)] we give a model that explains T2 semi-quantitatively as a function of both hole concentration and stage number and, in a simplified variation, yields a functional dependence of T2 on the CuO2 layer fraction of the unit cell that shows a maximum, as observed.

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