Microscopic theory of thermal phase slips in clean narrow superconducitng wires.

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Phys. Rev. Lett.

DOI:https://doi.org/10.1103/PhysRevLett.98.197005· OSTI ID:914947

Zharov, A; Lopatin, A; Koshelev, A E; Vinokur, V M

We consider the structure of a thermal phase-slip center for a simple microscopic model of a clean one-dimensional superconductor in which superconductivity occurs only within one conducting channel or several identical channels. Surprisingly, the Eilenberger equations describing the saddle-point configuration allow for an exact analytical solution in the whole temperature and current range. This solution allows us to derive a closed expression for the free-energy barrier, which we use to compute its temperature and current dependences.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 914947
• Report Number(s): ANL/MSD/JA-58535; PRLTAO; TRN: US200817%%27
• Journal Information: Phys. Rev. Lett., Vol. 98, Issue 2007; ISSN 0031-9007
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
ANALYTICAL SOLUTION
FREE ENERGY
SUPERCONDUCTING WIRES
SUPERCONDUCTIVITY
PHASE DIAGRAMS