LVGVCALC: Difference between revisions
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Latest revision as of 15:51, 3 March 2025
LVGVCALC = .TRUE. | .FALSE.
Default: LVGVCALC = .TRUE.
Description: LVGVCALC switches on calculation of the vGv expression for the orbital magnetic susceptibility.
LVGVCALC is available as of VASP.6.4.0.
When performing a chemical shift calculation the standard pGv susceptibility is calculated and used in the calculation of the CSA tensor [1]. When LVGVCALC is true, the magnetic susceptibility is also calculated with the vGv approximation. LVGVAPPL determines whether the vGv or pGv result is applied in the calculation of the [math]\displaystyle{ \mathbf{G=0} }[/math] contribution to the CSA tensor.
The vGv expression for the orbital susceptibility was introduced by d'Avezac et al. [2]. In VASP its ultra-soft generalization is used [3].
Related tags and articles
References
- ↑ J. R. Yates, C. J. Pickard, and F. Mauri, Calculation of NMR chemical shifts for extended systems using ultrasoft pseudopotentials, Phys. Rev. B 76, 024401 (2007).
- ↑ M. d'Avezac, N. Marzari, and F. Mauri, Spin and orbital magnetic response in metals: Susceptibility and NMR shifts, Phys. Rev. B 76, 165122 (2007).
- ↑ G.A. de Wijs, G. Kresse, R. W. A. Havenith, and M. Marsman, Spin and orbital magnetic response in metals: Susceptibility and NMR shifts, J. Chem. Phys. 155, 234101 (2021).