Dear Paolo, Eyvaz, Haruhiko thanks for your effort. The description of Paolo and Haruhiko solved my problem...
> input_FS is the file containing input data for the program (written > by Eyvaz) > that calculates the Fermi surface, given the band structure > calculated in a > previous run, IIRC. That code requires in input the Fermi energy (it > might > read it from the bands data, but apparently it doesn't). If this is > your problem: > you can change the Fermi at will, since the band structure is fixed. > > You can change the Fermi energy in a self-consistent way by adding or > removing > charge to the system (variable "nelec"). This will modify the band > structure wrt the > neutral case, but not by much if you add or remove just a fraction of > an electron. > The code will take care of adding a neutralizing background (needed > in order to > have a finite value of the energy). right now, christmas can start. Relaxing days to all of you! Best regards, Nicki.
