Magnetization of highly anisotropic superconductors
Zavaritskii N. V., Zavaritskii V. N.
An additional peak has been found on the curve of — M(H) of single crystals of layered YBCO (1-2-3) and BSCCO (2-2-1-2) superconductors. This additional peak, whose height and position depend on the field orientation, appears in addition to the structural feature which corresponds \oH\Xi i.e., the critical field for the penetration of vortices along Cu-O layers. The strength and temperature dependence of the first critical field are determined for the Bi 2-2-1 -2 compound.