Title :
The analysis of current distributions in filamentary conductors: the influence of intergrowths
Author :
Volkozub, A.V. ; Everett, J. ; Perkins, G. ; Buscemi, P. ; Caplin, A.D. ; Dhalle, M. ; Marti, F. ; Grasso, G. ; Huang, Y.B. ; Flukiger, R.
Author_Institution :
Blackett Lab., Imperial Coll. of Sci., Technol. & Med., London, UK
fDate :
6/1/1999 12:00:00 AM
Abstract :
Filament isolation is an extremely important factor in multi-filament conductors. However, filament-bridging superconducting intergrowths have often been observed. We show from magnetisation, transport and Hall probe experiments on a range of BSCCO-2223 conductors that the effects of filament bridging are substantial. We infer that the critical current densities within the intergrowths, and also across their grain boundaries, are extremely high.
Keywords :
bismuth compounds; calcium compounds; ceramics; critical current density (superconductivity); grain boundaries; high-temperature superconductors; magnetisation; multifilamentary superconductors; strontium compounds; BSCCO-2223 conductors; BiSrCaCuO; Hall probe experiments; critical current densities; current distributions; filament isolation; filament-bridging superconducting intergrowths; filamentary conductors; grain boundaries; intergrowths; magnetisation; multi-filament conductors; Conductors; Electric variables measurement; High temperature superconductors; Magnetic flux; Magnetization; Magnetostatics; Persistent currents; Q measurement; Superconducting filaments and wires; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
