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Sandwich Excitons as the Mechanism of High-TC Superconductivity

Published online by Cambridge University Press:  28 February 2011

Brent A. Richert ,
Ewald Schachinger  and
Roland E. Allen
Brent A. Richert
Affiliation:
Department of Physics, U.S. Air Force Academy, Colorado“Springs, CO 80840
Ewald Schachinger
Affiliation:
Institut fur Theoretische Physik, Technische Universität Graz, Austria
Roland E. Allen
Affiliation:
Center for Theoretical Physics, Texas A&M University, College Station, TX 77843
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Abstract

One potential objection to virtual “sandwich excitons” as a pairing mechanism is that the transition densities may not be large enough to overcome the inherent disadvantage of a large energy denominator . In model calculations, we find that some of the transition densities and matrix elements can be large even if the dielectric constant is sizeable for, e.g., LaO excitons in La2‐xSrxCuO4

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 33
Copyright
Copyright © Materials Research Society 1990

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References

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