We have measured the angular dependence of the voltage-current characterist
ics in Bi-2223/Ag tape which has a high critical current density, 33 kA/cm(
2) at 77 K and self-magnetic field. The angular dependence can be attribute
d to that of the so-called glass-liquid transition field. It will be shown
that the critical current density can be described by the statistics model
as a function of the magnetic field and its angle. (C) 2001 Elsevier Scienc
e B.V. All rights reserved.