quantum-espresso/PHonon/PH/set_int12_nc.f90

66 lines
1.9 KiB
Fortran

!
! Copyright (C) 2007-2009 Quantum ESPRESSO group
! This file is distributed under the terms of the
! GNU General Public License. See the file `License'
! in the root directory of the present distribution,
! or http://www.gnu.org/copyleft/gpl.txt .
!----------------------------------------------------------------------------
SUBROUTINE set_int12_nc(iflag)
!----------------------------------------------------------------------------
!
! This is a driver to call the routines that rotate and multiply
! by the Pauli matrices the integrals.
!
USE ions_base, ONLY : nat, ntyp => nsp, ityp
USE spin_orb, ONLY : lspinorb, domag
USE noncollin_module, ONLY : noncolin
USE uspp_param, only: upf
USE phus, ONLY : int1, int2, int1_nc, int2_so
USE nc_mag_aux, ONLY : int1_nc_save
IMPLICIT NONE
INTEGER :: iflag
INTEGER :: np, na
IF (noncolin.AND.domag) THEN
int1_nc=(0.d0,0.d0)
int1 ( :, :, :, :, 2:4)=-int1 ( :, :, :, :, 2:4)
DO np = 1, ntyp
IF ( upf(np)%tvanp ) THEN
DO na = 1, nat
IF (ityp(na)==np) THEN
IF (upf(np)%has_so) THEN
CALL transform_int1_so(int1,na,iflag)
ELSE
CALL transform_int1_nc(int1,na,iflag)
END IF
END IF
END DO
END IF
END DO
int1 ( :, :, :, :, 2:4)=-int1 ( :, :, :, :, 2:4)
int1_nc_save(:,:,:,:,:,2) = int1_nc
END IF
int1_nc=(0.d0,0.d0)
IF (lspinorb) int2_so=(0.d0,0.d0)
DO np = 1, ntyp
IF ( upf(np)%tvanp ) THEN
DO na = 1, nat
IF (ityp(na)==np) THEN
IF (upf(np)%has_so) THEN
CALL transform_int1_so(int1,na,iflag)
CALL transform_int2_so(int2,na,iflag)
ELSE
CALL transform_int1_nc(int1,na,iflag)
IF (lspinorb) CALL transform_int2_nc(int2,na,iflag)
END IF
END IF
END DO
END IF
END DO
IF (noncolin.AND.domag) int1_nc_save(:,:,:,:,:,1) = int1_nc
END SUBROUTINE set_int12_nc