Reentrant phase diagram for granular superconductors

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.32.500· OSTI ID:5666016

Simanek, E

The mean-field phase diagram of the self-charging model of a granular superconductor is calculated using the functional-integral formulation. A pronounced reentrance is obtained in quantitative agreement with a previous calculation, involving 2..pi..-antiperiodic eigenstates of the Mathieu equation. It is argued that low-lying, odd-electron-number excitations play a significant role in the thermodynamics of Josephson-junction arrays, for which the Feynman functional-integral formulation holds.

• Research Organization: Department of Physics, University of California, Riverside, Riverside, California 92521
• OSTI ID: 5666016
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 32:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIAGRAMS
FEYNMAN PATH INTEGRAL
GRANULAR MATERIALS
INTEGRALS
JOSEPHSON JUNCTIONS
JUNCTIONS
MATERIALS
MEAN-FIELD THEORY
PHASE DIAGRAMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS