Phonon-limited resistivity of high- T sub c oxides: A strong-coupling calculation

Journal Article · Thu Oct 31 23:00:00 EST 1991 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.44.10404· OSTI ID:6381011

Zeyher, R ^[1]

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1. Max-Planck-Institut fuer Festkoerperforschung, D-7000 Stuttgart 80 (Federal Republic of Germany)

The equations of the lowest-order conserving Green's-function approximation for the phonon-limited resistivity are solved numerically. The input functions {alpha}{sup 2}{ital F}({omega}) and {alpha}{sub {ital t}{ital r}}{sup 2}{ital F}({omega}) are calculated from a screened ionic model for YBa{sub 2}Cu{sub 3}O{sub 7} and lead to integrated coupling constants {lambda}{similar to}3 and {lambda}{sub {ital t}{ital r}}{similar to}1. The calculated temperature dependence of the resistivity and the width of the Drude peak as well as the absolute values of the prefactors are in excellent agreement with experiment. This result shows, in particular, that the observed resistivity in high-{ital T}{sub {ital c}} oxides does not imply a weak electron-phonon coupling.

• OSTI ID: 6381011
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 44:18; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COUPLING
ELECTRIC IMPEDANCE
ELECTRON-PHONON COUPLING
ENERGY LEVELS
FERMI LEVEL
FUNCTIONS
GREEN FUNCTION
HIGH-TC SUPERCONDUCTORS
IMPEDANCE
MATHEMATICAL MODELS
MATHEMATICS
NUMERICAL ANALYSIS
PARTICLE MODELS
QUASI PARTICLES
SCATTERING
SCREENING
STRONG-COUPLING MODEL
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE