High Field Magnetotransport of the Pressure Induced Organic Superconductor (BEDT-TTF)3Cl22H2O

The magnetotransport of single crystals of (BEDT-TTF)3C122H20 was studied in the Pressure range 10=20 kbar at continuous magnetic fields up to 15 T and at temperatures down to 700 mK.Above 12.5 kbar a single series of Shubnikovde Haas oscillations is observed, corresponding to about 0.5-1% of the cross-section of the first Brillouin zone.A superconducting state with the highest transition temperature close to 3 K is stabilised between 10.2 kbar and 13.5 kbar.