Title :
Low magnetic field sensitivity of c-axis transport in BSCCO (2212) single crystals
Author :
Ji Ung Lee ; Hohenwarter, G. ; Kelley, R.J. ; Nordman, J.E.
Author_Institution :
Wisconsin Univ., Madison, WI, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
We have examined the sensitivity to low magnetic fields of c-axis transport in BSCCO (2212) bulk single crystals. A uniform field is applied along the ab planes of a mesa structure which was formed by etching. Four terminal volt-ampere curves in liquid nitrogen show a field dependent critical current and flux flow region followed by a multiple branch region, suggestive of stacks of hysteretic junctions.<>
Keywords :
Josephson effect; bismuth compounds; calcium compounds; critical currents; flux flow; high-temperature superconductors; magnetoresistance; strontium compounds; BSCCO (2212) single crystals; Bi/sub 2/Sr/sub 2/Ca/sub 1/Cu/sub 2/O; anisotropic layered superconductor; c-axis transport; critical current; etching; flux flow; four terminal volt-ampere curves; hysteretic junction stack; magnetic field sensitivity; mesa structure; Anisotropic magnetoresistance; Annealing; Bismuth compounds; Crystals; Etching; Insulation; Josephson junctions; Magnetic fields; Nitrogen; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
