default Fermi level in the el-ph calculation

bigze · Post by **bigze** » Sat Jan 03, 2015 8:50 am

Dear Forum users,

I am new to ABINIT and the forum. Recently I have been particularly interested in el-ph interactions. ABINIT shows one example on Al which is a metallic case. Judging from the output and I guess the Fermi level has been set to 0.0 in the calculation. However, the situation with insulators/semiconductors is kind of unclear. I am guessing that the top of the valence band was set to 0.0 and that is the Fermi level, am I right? If I were to shift the Fermi level to a new one, for example shifting it to 0.2eV above valence band top, I only need to set elph_fermie = 0.2 eV, correct?

Another question is whether it is possible to set the electron temperature in anaddb? For instance, I want to know the el-ph interaction with an electron temperature of 1000K instead of 0K. Or maybe what I could do is just change elph_fermie or ep_extrael?

Thank you so much,
Hongze