abinit/tests/v7/Input/t41.abi

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#Prepare the computation of linear optic properties (for the imaginary spectrum only)
#of Si crystal : ground-state with few bands,
#then non-SCF with a larger number of bands, then ddk for different directions
#Note that the k point sampling shoud be finer for significant results. The cut-off energy is also too low.
ndtset 6
#First dataset : SC run with kpoints in the IBZ
nband1 4
nstep1 25
kptopt1 1
nbdbuf1 0
prtden1 1
getden1 0
getwfk1 0
#Second dataset : NSC run with large number of bands, and points in the IBZ
iscf2 -2
nband2 9 ! Minimal number of bands for linear optics (imaginary part of the spectrum)
nstep2 25
kptopt2 1
getwfk2 1
getden2 1
#Third dataset : NSC run with large number of bands, and points in the the full BZ
iscf3 -2
nband3 9 ! Minimal number of bands for linear optics (imaginary part of the spectrum)
nstep3 25
kptopt3 2 ! Time-reversal symmetry can be used in the present implementation for linear optics
getwfk3 2
getden3 1
#Fourth dataset : ddk response function along axis 1
iscf4 -3
nband4 9 ! Minimal number of bands for linear optics (imaginary part of the spectrum)
nstep4 1
nline4 0
kptopt4 2 ! Time-reversal symmetry can be used in the present implementation for linear optics
prtwf4 3
nqpt4 1
qpt4 0.0d0 0.0d0 0.0d0
rfdir4 1 0 0
rfelfd4 2
getwfk4 3
#Fifth dataset : ddk response function along axis 2
iscf5 -3
nband5 9 ! Minimal number of bands for linear optics (imaginary part of the spectrum)
nstep5 1
nline5 0
kptopt5 2 ! Time-reversal symmetry can be used in the present implementation for linear optics
prtwf5 3
nqpt5 1
qpt5 0.0d0 0.0d0 0.0d0
rfdir5 0 1 0
rfelfd5 2
getwfk5 3
#Sixth dataset : ddk response function along axis 3
iscf6 -3
nband6 9 ! Minimal number of bands for linear optics (imaginary part of the spectrum)
nstep6 1
nline6 0
kptopt6 2 ! Time-reversal symmetry can be used in the present implementation for linear optics
prtwf6 3
nqpt6 1
qpt6 0.0d0 0.0d0 0.0d0
rfdir6 0 0 1
rfelfd6 2
getwfk6 3
#Data common to all datasets
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
ngkpt 3*4 ! This is much too low : should be at least 24x24x24
acell 3*10.217
diemac 12.0
ecut 2.00 ! This is also too low
natom 2
nbdbuf 2
ntypat 1
rprim 0 .5 .5 .5 0 .5 .5 .5 0
xred 3*0.00d0
3*0.25d0
typat 1 1 tolwfr 1.e-20
znucl 14
pp_dirpath "$ABI_PSPDIR"
pseudos "PseudosTM_pwteter/14si.pspnc"
#%%<BEGIN TEST_INFO>
#%% [setup]
#%% executable = abinit
#%% need_cpp_vars = !HAVE_MPI_IO_DEFAULT
#%% test_chain = t41.abi, t42.abi
#%% [files]
#%% files_to_test =
#%% t41.abo, tolnlines = 0, tolabs = 0.0, tolrel = 0.0, fld_options = -easy
#%% [paral_info]
#%% max_nprocs = 2
#%% [extra_info]
#%% authors = Y. Gillet
#%% keywords = NC, DFPT, DDK, MINIMAL
#%% description = Silicon, DDK computation to prepare 'optic'
#%% topics = Optic
#%%<END TEST_INFO>