In:
Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 04, No. 21 ( 1990-11-20), p. 1361-1367
Abstract:
The ac complex susceptibility χ′−iχ″ of several bulk samples with very high critical current density J c have been measured. The results show that these samples are all polycrystalline bulk material, the peak of χ″ still related to losses within “the weak link structure” of the intergrain material. But the intergrain coupling strength of the high J c samples is much stronger than ordinary high-T c superconductors. A parameter β=(T c2 (0) −T c2 (h 0 ))/h 0 2/3 has been proposed to characterize the coupling strength.
Type of Medium:
Online Resource
ISSN:
0217-9849
,
1793-6640
DOI:
10.1142/S0217984990001707
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
1990