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HSE Calculation

Posted: Wed Sep 21, 2011 1:39 pm
by kmkumar
I have VASP 5.2 and preconverged wavecar using PAW_PBE pseudopotentials. I wanted calculate the energy using hybrid functional for example HSE and B3LYP.

Could any one point me to the systematic procedure.
Is it not possible to start HSE without the preconverged WAVECAR even for the simpler systems.

HSE Calculation

Posted: Thu Sep 22, 2011 5:36 am
by kambiz
Hi,

You can run a single run Hybrid Functional calculation using DFT converged WAVECAR:

LHFCALC = .TRUE.
.
.
.

And then do a hybrid functional optimization, using the previous WAVECAR.

Maybe it s possible to perform a HSE without pre-converged WAVECAR, but it takes a lot time.

Cheers