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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