quantum-espresso/PHonon/PH/write_epsilon_and_zeu.f90

54 lines
1.6 KiB
Fortran

!
! Copyright (C) 2001 PWSCF 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 write_epsilon_and_zeu (zstareu, epsilon, nat, iudyn)
!-----------------------------------------------------------------------
!! Write effective charges and dielectric tensor on output.
!
USE kinds, only : DP
USE control_ph, ONLY : xmldyn
USE io_global, ONLY : ionode
!
implicit none
!
integer :: iudyn
!! input: unit number
integer :: nat
!! input: number of atom in the unit cell
real(DP) :: zstareu(3,3,nat)
!! the effective charges
real(DP) :: epsilon(3,3)
!! the dielectric tensor
!
! ... local variables
!
integer :: na, icar, jcar
! counter on atoms
! cartesian coordinate counters
!
! write dielectric tensor and Z(E,Us) effective charges on iudyn
!
IF (.NOT.xmldyn.AND.ionode) THEN
write (iudyn, '(/,5x,"Dielectric Tensor:",/)')
write (iudyn, '(3f24.12)') ((epsilon(icar,jcar), jcar=1,3), icar=1,3)
write (iudyn, '(/5x, "Effective Charges E-U: Z_{alpha}{s,beta}",/)')
do na = 1, nat
write (iudyn, '(5x,"atom # ",i4)') na
write (iudyn, '(3f24.12)') ((zstareu(icar,jcar,na), jcar=1,3), icar=1,3)
enddo
ENDIF
!
! write dielectric tensor and Z(E,Us) effective charges on standard output
!
CALL summarize_epsilon()
CALL summarize_zeu()
return
end subroutine write_epsilon_and_zeu