Theory of superconductivity based on direct electron-phonon coupling. II

Journal Article · Sat Feb 01 00:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.1595· OSTI ID:6310040

Carr, Jr, W J

The origin of a superconducting interaction in metallic hydrogen computed in the preceding paper is shown to be an electronic screening of the zero-point oscillations of the nuclei as a result of electron-phonon interaction, where the superconducting wave function allows more effective screening than the normal-state wave function. Virtual phonons are involved in the screening process, and the phonons of interest are the bare longitudinal phonons with small wave vector. The screening results in a correlation energy between electrons and nuclei where the correlation is of long range. The screening length is shown to be the same as the coherence length defined by the uncertainty principle.

• Research Organization: Westinghouse Electric Corporation, Research and Development Center, Pittsburgh, Pennsylvania 15235
• OSTI ID: 6310040
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 33:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HYDROGEN
SUPERCONDUCTIVITY
COHERENCE LENGTH
CORRELATIONS
ELECTRON-PHONON COUPLING
ELECTRONS
METALS
NUCLEI
OSCILLATIONS
SCREENING
UNCERTAINTY PRINCIPLE
WAVE FUNCTIONS
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FUNCTIONS
LENGTH
LEPTONS
NONMETALS
PHYSICAL PROPERTIES
360104* - Metals & Alloys- Physical Properties
656101 - Solid State Physics- Superconductivity- General Theory- (-1987)