# METHOD

Section can be repeated.

Section of information on method to use. [Edit on GitHub]

Subsections

- EXTERNAL_VXC
- XC
- ZMP

## Keywords

- METHOD_TYPE

- RELATIVISTIC

## Keyword descriptions

METHOD_TYPE: enum = KOHN-SHAM

  Usage: METHOD_TYPE (KOHN-SHAM|RKS|UKS|HARTREE-FOCK|RHF|UHF|ROHF)

  Valid values:

  - `KOHN-SHAM` Kohn-Sham electronic structure method

  - `RKS` Restricted Kohn-Sham electronic structure method

  - `UKS` Unrestricted Kohn-Sham electronic structure method

  - `HARTREE-FOCK` Hartree-Fock electronic structure method

  - `RHF` Restricted Hartree-Fock electronic structure method

  - `UHF` Unrestricted Hartree-Fock electronic structure method

  - `ROHF` Restricted open-shell Hartree-Fock electronic structure method

  Type of electronic structure method to be used [Edit on GitHub]

RELATIVISTIC: enum = OFF

  Usage: RELATIVISTIC (OFF|ZORA(MP)|scZORA(MP)|DKH(0)|DKH(1)|DKH(2)|DKH(3))

  Valid values:

  - `OFF` Use no scalar relativistic method

  - `ZORA(MP)` Use ZORA method with atomic model potential

  - `SCZORA(MP)` Use scaled ZORA method with atomic model potential

  - `DKH(0)` Use Douglas-Kroll-Hess Hamiltonian of order 0

  - `DKH(1)` Use Douglas-Kroll-Hess Hamiltonian of order 1

  - `DKH(2)` Use Douglas-Kroll-Hess Hamiltonian of order 2

  - `DKH(3)` Use Douglas-Kroll-Hess Hamiltonian of order 3

  Type of scalar relativistic method to be used [Edit on GitHub]