Author/Authors :
van der Wel، نويسنده , , P.J. and Caulfield، نويسنده , , J. and Hayden، نويسنده , , S.M. and Singleton، نويسنده , , J. and Springford، نويسنده , , M. and Meeson، نويسنده , , P. and Hayes، نويسنده , , W. and Kurmoo، نويسنده , , M. and Day، نويسنده , , P.، نويسنده ,
Abstract :
We report a study of the de Haas-van Alphen effect near the upper critical field in the organic superconductor κ-(ET)2Cu(NCS)2. The experiments have been carried out for a range of sample orientations with respect to the magnetic field and of temperatures down to 20 mK. On entering the vortex state, an attenuation of the dHvA signal is observed relative to an extrapolation of the standard Lifshitz-Kosevich formula using band parameters measured in the normal state.
