Flux creep and flux pinning in layered high-temperature superconductors

Journal Article · Mon Apr 09 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.1828· OSTI ID:6947930

Ivlev, B I; Kopnin, N B ^[1]

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1. L. D. Landau Institute for Theoretical Physics, Academy of Sciences of the U.S.S.R., Moscow, U.S.S.R (SU)

For a high-{ital T}{sub {ital c}} layered superconductor, we study a flux creep when the magnetic field is parallel to the layers (the CU-O planes) and vortices move across them. In a homogeneous material, the pinning of vortices results from their interaction with the layered structure of the superconductor provided the vortex-lattice period is commensurate with the interlayer spacing. The flux-creep activation energy is proportional to {ital j}{sup {minus}1} at small currents due to a large size of the activated vortex bundle.

• OSTI ID: 6947930
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:15; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ACTIVATION ENERGY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
EFFECTIVE MASS
ENERGY
MAGNETIC FLUX
MASS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS