Metallic phase stabilization and phase diagram of (ET)3(HSO4)2\mathsf{(ET)_{3}(HSO_{4})_{2}}

A novel way for obtaining (ET)$_{3}$(HSO$_{4}$)$_{2}$ single crystals is reported. The metallic state of (ET)$_{3}$(HSO$_{4}$)$_{2}$ is stabilized at the pressure of 7.5 kbar. The metal-insulator phase transition is found to be of the second order. The phase diagram of (ET)$_{3}$(HSO$_{4}$)$_{2}$ is presented