Anisotropy of Meissner effect in layered superconductor Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/

摘要

The DC susceptibility of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/ single crystals has been measured in very low magnetic fields, applied parallel and perpendicular to c-axis. The Meissner and shielding effects have been observed for both orientations. It has been found that low-field magnetic properties are highly anisotropic. The incomplete shielding and Meissner effects are discussed in terms of existing theoretical models.