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Re: total energy


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  • From: xd0533@163.com
  • To: forum@abinit.org
  • Subject: Re: total energy
  • Date: Thu, 24 May 2007 11:06:28 +0200

This is my input file.I use FHI Pseudopotentials(GGA).

ndtset 6
#Definition of the unit cell and ecut,
#for which one will have to make a convergence study
acell 10.1214 10.4105 9.7661
angdeg 90 96.69 90
ecut: 30 ecut+ 5

#First dataset : find the optimal bond length of H2, and associated total
energy
spgroup 13
natom 12
natrd 3
xred
2.5E-01 7.6511E-01 5.0E-01
2.5E-01 3.08600E-01 -9.8764E-019
1.03100E-01 8.6200E-02 2.53900E-01
#Definition of the atom types
ntypat 3 # There is only one type of atom
znucl 64 73 8
#Definition of the atoms
typat 1 1 2 2 3 3 3 3 3 3 3 3

#Definition of the k-point grid
kptopt 1
nshiftk 1
shiftk 0.5 0.5 0.5 # These shifts will be the same for all grids

ngkpt 4 4 4 # Only one k point is needed for isolated
system,
# Only one k point is needed for isolated system,
# taken by default to be 0.0 0.0 0.0
ixc 11
#Definition of the SCF procedure
nstep 100 # Maximal number of SCF cycles
toldfe 1.0d-5
diemac 4.0
diemix 1.0
Thank you!



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