Flux-line pinning by the grain boundary in niobium bicrystals

Conference · Thu Mar 01 04:00:00 EST 1984

OSTI ID:6617719

Kerchner, H R; Christen, D K; Das Gupta, A; Sekula, S T; Cai, B C; Chou, Y T

The interaction between the single grain boundary in bicrystals of niobium and the lattice of magnetic flux lines in the superconducting mixed state was investigated by measuring the critical current. Flux lines are found to be pinned at the grain boundary when the two are aligned to within about 1/sup 0/. The data imply that both the intrinsic anisotropy of niobium and the electron scattering by the boundary contribute to the pinning.

• Research Organization: Oak Ridge National Lab., TN (USA); Lehigh Univ., Bethlehem, PA (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6617719
• Report Number(s): CONF-840842-27; ON: DE84016668
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BICRYSTALS
CRITICAL CURRENT
CRYSTAL STRUCTURE
CRYSTALS
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
GRAIN BOUNDARIES
MAGNETIC FLUX
METALS
MICROSTRUCTURE
NIOBIUM
POLYCRYSTALS
TRANSITION ELEMENTS