hide
Free keywords:
-
Abstract:
Tl2Ba2CuO6+delta. There crystals with different levels of oxygen
overdoping were investigated in magnetic fields up to 10 T. In all
cases, the magnetization above the irreversibility line was found to
depart from the behavior M similar to In(eta H-c2\H) of a simple
London-like vortex liquid. In particular, for a strongly overdoped (T-c
=15 K) crystal, the remnant superconducting order above the
irreversibility line is characterized by a linear diamagnetic response
(M similar to H) that persists well above T-c and also up to the highest
field employed.