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General Questions and Answers / Why band structure & fermi energy is changing with fermi broadening temperature?
« on: January 7, 2023, 14:49 »
I was calculating band structure of nanoribbon a material. I have learned from the forum that 'Fermi Broadening temperature ' has no physical significant. I calculated band structure for different Broadening temperature. I observed that fermi energy is shifting downwards. And there is significant changes in the band structure also. At 1800K I got dirac cone at gamma point but occupied states above the fermi energy. But at 4200k I got fermi level right with10meV gap which is not what I want. Can anyone please explain this to me?