Electron correlations and pairing in low‐dimensional systems | Zendy

Ukrainskii I. I. | Zendy

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Electron correlations and pairing in low‐dimensional systems

Author(s) -

Ukrainskii I. I.

Publication year - 1994

Publication title -

international journal of quantum chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.484

H-Index - 105

eISSN - 1097-461X

pISSN - 0020-7608

DOI - 10.1002/qua.560520214

Subject(s) - pairing , valency , geminal , ground state , superconductivity , electron , electronic correlation , condensed matter physics , conjugated system , physics , electrical conductor , wave function , chemistry , quantum mechanics , polymer , nuclear magnetic resonance , stereochemistry , philosophy , linguistics

The many‐electron system in one and two dimensions are studied within the geminal approach. The analytical expressions for the wave functions and ground‐state energies are obtained for a number of 1‐ D and 2‐ D systems: conjugated polymers, organic conductors, 2‐ D conductors with square lattices, and others. It is shown that electron excitations of a kink type can exist in 2‐ D systems with mixed valency. In this case, the correlation pairing of current carriers arises as a result of correlation effects leading to superconducting properties of the system. © 1994 John Wiley & Sons, Inc.

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