Most of the examples that I have performed, fermi energy level is at 0 and there shows no spikes in DOS but in case of MnO2 I am getting spikes why ?
Hey Muhammad Azam Khan
If your Fermi level is not at zero, simply subtract EFERMI (from OUTCAR) from your DOS energies when plotting, or use VASPKIT to shift it to EF=0 eV. As for those large spikes you see far below the Fermi level are just "core-like" states and can be safely ignored (they play no role in the electronic properties near the band gap - region of interest in most cases). Spike-like features near the valence/conduction edges, however, could mean too coarse k-mesh and/or too small smearing/too low NEDOS in the DOS step.
Best,
Gabriel Vinicius
Your DOS seems correct , you need to change energy interval for example -6 ;6
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