Molecular-orbital approach to the Froehlich bipolaron

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.6019· OSTI ID:6242326

Sahoo, S; Mitra, T K ^[1]

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1. Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700032 (India)

It is shown that the Froehlich bipolaron is feasible in a two-center molecular-orbital approach. The binding energy comes out stronger than the corresponding Heitler-London approach. The critical value [eta][sub [ital c]] of [eta]=[var epsilon][sub [infinity]]/[var epsilon], below which the bipolaron is realizable, is found to be 0.14, which is the best value, otherwise obtained, in the literature.

• OSTI ID: 6242326
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:9; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665000* -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BINDING ENERGY
CALCULATION METHODS
CORRELATIONS
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
ELECTRON CORRELATION
ENERGY
HIGH-TC SUPERCONDUCTORS
MOLECULAR ORBITAL METHOD
PHYSICAL PROPERTIES
POLARONS
QUASI PARTICLES
STABILITY
SUPERCONDUCTORS