Polaronic effects in the photoemission spectra of strongly coupled electron-phonon systems

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.13109· OSTI ID:7182679

Alexandrov, A S; Ranninger, J ^[1]

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1. Centre de Recherches sur les Tres Basses Temperatures, Centre National de la Recherche Scientifique, Boite Postale 166, 38042 Grenoble, CEDEX 9 (France)

The angle-resolved photoemission spectrum is derived for systems with strong electron-phonon coupling. Polaronic features of the charge carriers are manifest in a broad spectrum, with a maximum at an energy (below the Fermi energy) corresponding to the polaron binding energy. In the strong-coupling limit and with dispersionless phonons an oscillatory structure is superposed on this broad spectrum with a frequency equal to the characteristic phonon frequency.

• OSTI ID: 7182679
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:22; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BINDING ENERGY
CHARGE CARRIERS
COUPLING
ELECTRON-PHONON COUPLING
EMISSION
ENERGY
FUNCTIONS
GREEN FUNCTION
HIGH-TC SUPERCONDUCTORS
PHOTOEMISSION
POLARONS
QUASI PARTICLES
SECONDARY EMISSION
SUPERCONDUCTORS