tmin : minimum temperature. Default: real 1 K tmax : maximum temperature. Default: real 800 K deltat : interval between two temperatures. Be careful with this value because too small or too large values of this parameter could give numerical errors in the temperature derivatives used to calculate anharmonic properties. Default: real 3 K ntemp : number of temperatures Default: integer determined from previous data pressure : The external pressure. The crystal parameters are calculated minimizing the enthalpy at this pressure. Given in kbar units. Default: real 0.0 kbarNote that when you fix the external pressure, the geometries chosen to fit the enthalpy must be about the minimum geometry at that pressure.