(1) Lawrence Berkeley Laboratory, University of California, Berkeley, California, 94720;(2) Landau Institute for Theoretical Physics, Moscow, Russia, 11733V;(3) Naval Research Laboratory, Washington, DC, 20375-5000
Abstract:
Presence of localized magnetic moments and inhomogeneites leads to an unconventional behavior of the upper critical field for layered superconductors. In addition, one can observe a large diamagnetic moment at HHc2 and in the normal resistive state.