abinit/tests/tutorespfn/TutoNLO/PART2-BERRY/alas_ddk.in

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# Linear response calculation for AlAs
# Perturbation: atomic displacements & strains
# Finite difference calculation of the ddk
# (M. Veithen, 28.4.2005)
#Definition of lattice parameters
#********************************
acell 3*10.6395177524329601
rprim 0.0 0.5 0.5
0.5 0.0 0.5
0.5 0.5 0.0
#Definition atomic positions and types
#*************************************
natom 2
ntypat 2
znucl 13 33
typat 1 2
xred 0 0 0
0.25 0.25 0.25
ixc 3
#Parameters of the SCF cycles
#****************************
iscf 5
nstep 100
#Pland wave basis and k-point grid
#*********************************
ecut 5
ecutsm 0.5
dilatmx 1.05
ngkpt 6 6 6
nshiftk 4
shiftk 0.5 0.5 0.5
0.5 0.0 0.0
0.0 0.5 0.0
0.0 0.0 0.5
ndtset 3 jdtset 1 2 3
#DATASET1 : scf calculation: GS WF in the BZ
#********************************************
prtden1 1
kptopt1 1
toldfe1 1.0d-12
#DATASET2 : non scf calculation: GS WF in the whole BZ
#*****************************************************
getden2 1
kptopt2 2
iscf2 -2
getwfk2 1
tolwfr2 1.0d-22
nband2 4
berryopt2 -2
rfdir2 1 1 1
#DATASET3 : linear response to atomic displacements and strains
#**************************************************************
getwfk3 2
getddk3 2
rfdir3 1 1 1
rfstrs3 3
rfphon3 1
rfatpol3 1 2
toldfe3 1.0d-12
nband3 4
kptopt3 2
nbdbuf 0