In my calculation, the Fermi level is at 2.34 eV in the band structure. Now I want to shift the Fermi level to zero in GNUPLOT. please tell me about this problem or write command to bring F.L to zero in gnuplot.
If we start with a two column file (x and y). The second column will give the energy in eV. Thus, to shift the Fermi level to zero we must to do de difference as follow:
plot "data.dat" using 1:($2-2.34) with lines
where data.dat is the two column file, the second column has the energy values which must be corrected by -2.34. "with lines" is optional.