Author/Authors :
Pinteric، M. نويسنده , , M. and Prester، نويسنده , , Lynn M. and Tomic، نويسنده , , S. and Maki، نويسنده , , K. and Schweitzer، نويسنده , , D. and Heinen، نويسنده , , I. and Strunz، نويسنده , , W.، نويسنده ,
Abstract :
We summarize the main features of the magnetic field-temperature phase diagram for the superconducting state of κ-(BEDTTTF) 2Cu[N(CN)2]Br. The initial temperature dependence of the real component of ac susceptibility for field parallel and perpendicular to the ac plane are markedly different. The out-of-plane penetration depth λb and the related superfluid density vary at low tempeartures as T1. Slow flux dynamics below the irreversibility line for the ac field perpendicular to the BEDT-TTF planes might be ascribed to a vortex-pair creation process. The characteristic relaxation time τ >10−4 s is thermally activated with an activation energy of about 300K.
