Title :
Interpretation of magnetization measurement data obtained on hot pressed Pb/sub 1-x/Sn/sub x/Mo/sub 6/S/sub 8/ samples
Author :
Pech, T. ; Cors, J. ; Decroux, M. ; Selvam, P. ; Chevrel, R.
Author_Institution :
Lab. de Genie Electr. de Paris, Paris VI Univ., Gif-sur-Yvette, France
fDate :
3/1/1993 12:00:00 AM
Abstract :
Magnetization measurements have been carried out on samples prepared with varied Sn contents, using constant parallel applied field sweep rates in the range of 30 to 190 mT/s. The hysteresis loops observed up to about 6 T at 4.2 K are earmarked by characteristic flux jump phenomena. J/sub c/ critical current densities deduced from the loop widths can be interpreted, in agreement with the fine analyses of the loops, in terms of global critical screening currents, related to very good connectivity between the grains.<>
Keywords :
critical current density (superconductivity); flux flow; hot pressing; lead compounds; magnetic hysteresis; magnetisation; molybdenum compounds; tin compounds; type II superconductors; 4.2 K; 6 T; characteristic flux jump phenomena; constant parallel applied field sweep rates; critical current densities; global critical screening currents; grain connectivity; hot pressed Pb/sub 1-x/Sn/sub x/Mo/sub 6/S/sub 8/ samples; hysteresis loops; loop widths; magnetization measurement data; superconductor; Critical current density; Density measurement; Lead; Magnetic field measurement; Magnetic hysteresis; Magnetization; Position measurement; Shape measurement; Tin; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
