Low-temperature vortex dynamics in twinned superconductors

Journal Article · Mon May 23 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3409· OSTI ID:7238542

Marchetti, M C ^[1]; Vinokur, V M ^[2]

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1. Department of Physics, Syracuse University, Syracuse, New York 13244 (United States)
2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

The low-temperature dynamics of magnetic flux lines driven to move transverse to family of parallel twin planes maps onto the dynamics of carriers in [ital one[minus]dimensional] disordered semiconductors. As in flux arrays with columnar pins, there is a regime where the dynamics is dominated by superkink excitations that correspond to Mott variable-range hopping (VRH) of carriers. In one dimension, however, rare events, such as large regions void of twin planes, can impede VRH and dominate transport in samples that are sufficiently long in the direction of flux motion. In short samples rare regions can be responsible for mesoscopic effects.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7238542
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:21; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIAGRAMS
DYNAMICS
MAGNETIC FLUX
MECHANICS
PHASE DIAGRAMS
SUPERCONDUCTORS
TWINNING
TYPE-II SUPERCONDUCTORS
VORTICES