LVHAR: Difference between revisions
No edit summary |
No edit summary |
||
Line 27: | Line 27: | ||
---- | ---- | ||
[[Category:INCAR]][[Category:Electronic minimization]] | [[Category:INCAR tag]][[Category:Electronic minimization]] |
Revision as of 14:44, 8 April 2022
LVHAR = [logical]
Default: LVHAR = .FALSE.
Description (for VASP.5.2.12 and higher): The potential [math]\displaystyle{ V_{\text{LOCPOT}}(\mathbf{r}) }[/math] (in eV) written to the LOCPOT file is
[math]\displaystyle{ V_{\text{LOCPOT}}(\mathbf{r}) = V(\mathbf{r}) + \int \frac{n(\mathbf{r'})}{|\mathbf{r}-\mathbf{r'}|}d\mathbf{r'}+ V_{\text{XC}}(\mathbf{r}) }[/math]
where [math]\displaystyle{ V(\mathbf{r}) }[/math] is the ionic potential, the second term is the Hartree potential and [math]\displaystyle{ V_{\text{XC}}(\mathbf{r}) }[/math] is the exchange-correlation potential.
If LVHAR=.TRUE. is set in the INCAR file, the file LOCPOT is written without the [math]\displaystyle{ V_{\text{XC}}(\mathbf{r}) }[/math] contribution being added up. Use LVTOT=.TRUE. to include [math]\displaystyle{ V_{\text{XC}}(\mathbf{r}) }[/math] contribution.
See LOCPOT to find out how to not include the [math]\displaystyle{ V_{\text{XC}}(\mathbf{r}) }[/math] in older versions of VASP.