abinit/tests/v4/Input/t31.abi

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#Driver
surf 1 # build the Bader surface
crit 2 # determine the critical points
atom 1 # The basin of attraction of atom 1 will be examined
gpsurf 1 # output for GNUplot
irho 1 # drives the integration of the Bader charge
#Parameter
# nsa 2 # one might gain a bit of cpu time
# nsb 2 # by using these values, smaller than the default
# nsc 2
inpt 50 # This value is suitable
ntheta 5 # This value is much too small
nphi 5 # This value is much too small
thetamax 1.57079632679 # These two variables define an octant
phimax 1.57079632679 #
maxatd 14.0 # Important to include enough starting atoms,
# in this system with quite large separations between atoms
#%%<BEGIN TEST_INFO>
#%% [setup]
#%% executable = aim
#%% test_chain = t30.abi, t31.abi
#%% [files]
#%% files_to_test =
#%% t31.out, tolnlines = 0, tolabs = 0.000e+00, tolrel = 0.000e+00, fld_options = -medium
#%% psp_files = DensityCore_pw/12-Mg.8.fc
#%% [paral_info]
#%% max_nprocs = 1
#%% [extra_info]
#%% authors = Unknown
#%% keywords =
#%% description =
#%% Simple cubic lattice of Mg atoms, Bader analysis.
#%% Determine correctly 6 bonding critical points,
#%% 12 ring critical points, and 8 cage critical points.
#%% (In agreement with Euler's relation : #BCP-#RCP+#CCP=2)
#%% The positions are very accurate (and fully coherent with symmetries).
#%% The eigenvalues of laplacian also fulfill the requirements
#%% symmetry.
#%% Bader charge is 12.0357, while it should be
#%% exactly 12 (10 core electrons and 2 valence electrons).
#%% The error is mostly due to
#%% insufficient angular sampling (only 5 theta and 5 phi
#%% in an octant). Going to (10,10) gives 11.9928,
#%% and (20,20) gives 11.9980. But in the latter case,
#%% the CPU time required is multiplied by about
#%% 10 when compared to the present setting.
#%% topics = Bader
#%%<END TEST_INFO>