The temperature-induced crossover from a two-dimensional (2D) to 3D behavior found in 2:2:1:2 Bi-Sr-Ca-Cu-O is studied by means of a large set of measurements of the magnetic field H * for the onset of dissipation. Some interesting features of the angular dependence near the crossover temperature are found; in particular, the H* values perpendicular to a-b planes lie on the irreversibility line. The angular behavior of H* is analogous to that of the upper critical field in conventional layered superconductors. A tentative explanation is given.
Marcon, R., Silva, E., Fastampa, R., Giura, M. (1992). MAGNETIC-FIELD FOR THE ONSET OF RESISTIVITY - ANGULAR-DEPENDENCE AND TEMPERATURE-INDUCED DIMENSIONAL CROSSOVER IN BI-SR-CA-CU-O. PHYSICAL REVIEW. B, CONDENSED MATTER, 46(6), 3612-3618 [10.1103/PhysRevB.46.3612].