Title of article :
Anisotropic Hc2, shubnikov de haas, and angular dependent magnetoresistance in the organic superconductor a-(BEDT-TTF)2MHg(SCN)4
Author/Authors :
Brooks، نويسنده , , J.S. and Uji، نويسنده , , S. and Aoki، نويسنده , , A. and Terashima، نويسنده , , T. and Tokumoto، نويسنده , , M. and Kinoshita، نويسنده , , N. and Tanaka، نويسنده , , Y. and Anzai، نويسنده , , H.، نويسنده ,
Abstract :
We report measurements on the anisotropic critical field, the angular dependent magnetoresistance, and Shubnikov de Haas oscillations in α-(BEDT-TTF)2NH4Hg(SCN)4, the only ambient pressure superconductor (Tc = 1.2K) in the α-(BEDT-TTF)2MHg(SCN)4 organic conductor family. The anisotropic critical field is well described by a 2-D model for layered supercondcutors where the anistropy ε = Hc\\/Hc⊥ is ∼ 25 at low temperatures, and rises to ∼ 100 near Tc. Beating behaviour is observed in the SdH effect in tilted magnetic fields.
