Low Field Magnetic Properties of Superconducting Tl sub 2 Ba sub 2 Ca sub 2 Cu sub 3 O sub 10 Single Crystals.

摘要

Low field characterization of single crystals of Tl sub 2 Ba sub 2 Ca sub 2 Cu sub 3 O sub 10 using shielding, Meissner, and flux trapping measurements in fields of 0.2--40 Oe are presented. The highest inductive onset observed is 124 K. It is found that the shielding signal is highly nonlinear in the applied field down to the lowest temperatures. The Meissner effect is found to be about 15% of the shielding effect. 8 refs., 3 figs. (ERA citation 14:010232)