NAME
sc::PW91CFunctional -
The Perdew-Wang 1991 correlation functional computes energies and
densities using the designated local correlation functional.
SYNOPSIS
#include <functional.h>
Inherits sc::DenFunctional.
Public Member Functions
PW91CFunctional (const Ref< KeyVal > &)
PW91CFunctional (StateIn &)
void save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the
same order that the StateIn CTOR initializes them.
int need_density_gradient ()
void point (const PointInputData &, PointOutputData &)
void set_spin_polarized (int)
Protected Member Functions
void init_constants ()
double limit_df_drhoa (double rhoa, double gamma, double ec, double
decdrhoa)
Protected Attributes
Ref< LSDACFunctional > local_
double a
double b
double c
double d
double alpha
double c_c0
double c_x
double nu
Detailed Description
The Perdew-Wang 1991 correlation functional computes energies and
densities using the designated local correlation functional.
J. P. Perdew, Proceedings of the 75. WE-Heraeus-Seminar and 21st Annual
International Symposium on Electronic Structure of Solids held in
Gaussig (Germany), March 11-15, 1991, P. Ziesche and H. Eschrig, eds.,
pp. 11-20.
J. P. Perdew, J. A. Chevary, S. H. Vosko, K. A. Jackson, M. R.
Pederson, and D. J. Singh, Phys. Rev. B, 46, 6671, 1992.
Member Function Documentation
void sc::PW91CFunctional::save_data_state (StateOut &) [virtual]
Save the base classes (with save_data_state) and the members in the
same order that the StateIn CTOR initializes them. This must be
implemented by the derived class if the class has data.
Reimplemented from sc::DenFunctional.
Author
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