Update README.txt

parent dd927cc5
......@@ -11,3 +11,18 @@ obtained as follows:
b) H atom in a tetrahedral instersitial site
c) W atom as first nearest neighbor to the H atom
d) W atom as second nearest neighbor to the H atom
Attention need to be paid to the quip command line to compute the
DVs for the hydrogenated W sample
The command line is:
quip atoms_filename=interstitial_geometry.xyz descriptor_str="soap cutoff=3.0 l_max=4 n_max=4 atom_sigma=0.5 n_Z=2 Z={74 1} n_species=2 species_Z={74 1}"
n_Z=2 is defined for 2 species in the material sample, this value can be changed
for material with more than 2 species.
Z={74 1} this parameter is defined according to the charge of the species, here
we consider that W = 74 and H = 1. The order of these number needs to be
defined according to the list of atoms defined in the xyz file.
n_species=2 this is the number of species in the material
species_Z={74 1} the order for this parameter is defined by the xyz file.
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