Real-Space and $\vec{k}$ -Space Electron Pairing in $Ba {Pb}_{1 - x} {Bi}_{x} O_{3}$

31 August 1981

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 47 (9) , 689-692
https://doi.org/10.1103/physrevlett.47.689

Abstract

A theory of the condensation of electrons, coupled strongly to optic phonons, into a lattice of real-space electron pairs is presented. Even if the on-site interaction is repulsive, real-space pairing of the Anderson form may occur because of interaction with other sites. Dilution weakens the intersite interaction and causes a phase transition that may be to a metallic state which undergoes

\vec{k}

-space (BCS) pairing at low temperatures. The results are applied to

Ba {Pb}_{1 - x} {Bi}_{x} O_{3}

Keywords

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Real-Space and k→-Space Electron Pairing in BaPb1−xBixO3

Abstract

Keywords

Real-Space and $\vec{k}$ -Space Electron Pairing in $Ba {Pb}_{1 - x} {Bi}_{x} O_{3}$