Electron-phonon coupling as a mechanism for high-temperature superconductivity

Conference · Wed Jun 01 00:00:00 EDT 1994 · Journal of Superconductivity; (United States)

OSTI ID:7166287

Fuller-Mora, W W; Wolf, S A ^[1]; Kresin, V Z ^[2]

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1. Naval Research Lab., Washington, DC (United States)
2. Univ. of California, Berkeley, CA (United States)

We have solved the Eliashberg gap equations which are valid for arbitrary phonon frequency, ([Omega][sub ph]), electron-phonon coupling constant, ([lambda]), and screened Coulomb interaction, ([mu]*). We have used values of [Omega][sub ph], [lambda], and [mu]* appropriate to the cuprate superconductors, and calculated the density of states, the pair potential, and the value of the gap at T = 0 K. Using the linearized Eliashberg equations in the matrix representation, we have calculated Tc and 2[Delta]/kTc. We have found that we can account for the high Tc's in the cuprates with reasonable values for [lambda], [mu]*, and [Omega][sub ph]. 10 refs., 2 figs., 1 tab.

• OSTI ID: 7166287
• Report Number(s): CONF-930710--
• Journal Information: Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 7:3; ISSN JOUSEH; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERAMICS
CERIUM COMPOUNDS
COPPER COMPOUNDS
COUPLING
CUPRATES
ELECTRON-PHONON COUPLING
ENERGY GAP
GORKOV-ELIASHBERG THEORY
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
MATHEMATICAL MODELS
NEODYMIUM COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS