abinit/tests/v4/Input/t65.abi

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# Crystalline AlP - rhombohedral distortion imposed
# Piezoelectroc tensor calculation
ndtset 3
#First dataset : Self-consistent ground-state run
kptopt1 1
#Second dataset : d/dk response calculation
iscf2 -3
rfelfd2 2
getwfk2 1
getden2 1
rfdir2 1 1 1
#Third dataset : stress and homogeneous electric field response
rfelfd3 3
getwfk3 1
getddk3 2
rfdir3 1 0 0
rfstrs3 3
diemix3 0.85
diemac3 1.0
#Backwards compatibility
asr 0 # The default value 1 is preferable, this is only to keep backward compatibility for the automatic tests
chneut 0 # The default value 1 is preferable, this is only to keep backward compatibility for the automatic tests
# Common data
acell 3*10.30
diemac 6.0
ecut 4.0
kptopt 2
natom 2
nband 4
nbdbuf 0
ngkpt 4 4 4
nshiftk 1
nstep 60
ntypat 2
occopt 1
prtden 1
prtvol 10
rprim 0.05 0.55 0.55
0.55 0.05 0.55
0.55 0.55 0.05
shiftk 0.5 0.5 0.5
xred 3*0.00d0 3*0.25d0
tolwfr 1.d-12
typat 1 2
znucl 13 15
pp_dirpath "$ABI_PSPDIR"//"/PseudosHGH_pwteter" ! Test this syntax
pseudos "13al.3.hgh, 15p.5.hgh"
#%%<BEGIN TEST_INFO>
#%% [setup]
#%% executable = abinit
#%% [files]
#%% files_to_test =
#%% t65.abo, tolnlines = 2, tolabs = 1.010e-06, tolrel = 2.000e-04, fld_options = -medium
#%% [paral_info]
#%% max_nprocs = 10
#%% [extra_info]
#%% authors = D. R. Hamann
#%% keywords = NC, DFPT
#%% description =
#%% Test of the strain perturbation for the rigid-ion piezoelectric
#%% tensor. AlP in the zincblende
#%% structure but incorporating a rhombohedral distortion of the
#%% unit cell to make more tensor components non-zero. The values
#%% of ecut and ngkpt are much too small for convergence, and
#%% tolwfs should be set smaller, probably 1.E-18 to 1.E-24.
#%% A full calculation of the set of d/dk wave functions in dataset 2
#%% is needed, idir2 = 1 1 1, even though idir3 = 1 0 0 in dataset 3,
#%% since all d/dk components are needed to compute the cartesian
#%% piezoelectric tensor. The only execptions to this are primitive
#%% orthorhombic, tetragonal, or cubic lattices with their primitive
#%% lattice vectors aligned with the cartesian axes.
#%%<END TEST_INFO>