How can I calculate energy of VBM

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bzheng

How can I calculate energy of VBM

#1 Post by bzheng » Wed Feb 29, 2012 1:53 am

Does anyone know how to calculate the energy of valence band maximum in VASP?
I have to use it in the formation energy of defect.
Thanks a lot
Last edited by bzheng on Wed Feb 29, 2012 1:53 am, edited 1 time in total.

tlchan

How can I calculate energy of VBM

#2 Post by tlchan » Thu Mar 01, 2012 10:09 am

I believe you do not really need the absolute value of the VBM. You probably want to know the Fermi level of the system with defect with respect to the VBM of the system without defect. The difference can be obtained by aligning the band structures of the two systems.
Last edited by tlchan on Thu Mar 01, 2012 10:09 am, edited 1 time in total.

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