Irreversibility line of the Tl monolayer superconductor TlBaSrCaCu2O7

摘要

Magnetic irreversibility data are obtained for the Tl monolayer superconductor TlBaSrCaCu2O7 (T-c = 104 K) from dc magnetization measurements at several applied magnetic fields. The irreversibility line (IL) conforms to the power law H = A(1 - T/T-c)(n) with a value of the exponent n = 2.31. The location of the IL is close to that of other Tl monolayer cuprates in the (H, T) plane but above those of bilayer phases.