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An Excitonic Model for the New High Temperature Superconductors
Abstract An excitonic model is given which can explain the experimental results of the new high temperature superconductors, AB42Cu3O6+δ (A = LA, Nd, Sm, Eu, Gd, Ho, Er, Lu and Y). The excitonic model is an extension of the one used to describe the temperature-dependent surface shielding effect in Cu and the anomalously large diamagnetism measurements found in CuCl and CdS at temperature above that of liquid nitrogen. Both singlet and triplet paired spins are included in the description. The parallel paired states contribute a paramagnetic term to the susceptibility and make possible no change in Tc with magnetic ion replacements for Y.
An Excitonic Model for the New High Temperature Superconductors
Abstract An excitonic model is given which can explain the experimental results of the new high temperature superconductors, AB42Cu3O6+δ (A = LA, Nd, Sm, Eu, Gd, Ho, Er, Lu and Y). The excitonic model is an extension of the one used to describe the temperature-dependent surface shielding effect in Cu and the anomalously large diamagnetism measurements found in CuCl and CdS at temperature above that of liquid nitrogen. Both singlet and triplet paired spins are included in the description. The parallel paired states contribute a paramagnetic term to the susceptibility and make possible no change in Tc with magnetic ion replacements for Y.
An Excitonic Model for the New High Temperature Superconductors
Collins, T. C. (author) / Kunz, A. Barry (author) / Ladik, J. J. (author)
Novel Superconductivity ; 379-384
1987-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
Excitonic Theory of High Temperature Oxide Superconductors and the Lack of an Isotope Shift
| Springer Verlag | 1987