# retinoic acid molecule: ndtset 1 #Number of DaTaSETs # The relaxation of the slab # optcell 1 => remove # if you want to optimise cell ionmov 0 #iscf 7 # iprcel 45 #Definition of the k-point grid kptopt 0 kpt 0.0 0.0 0.0 #getwfk -1 # This is to speed up the calculation, by restarting # from previous wavefunctions, transferred from the old # to the new k-points. #Definition of the slab unit cell acell 15.0 15.0 15.0 angstrom angdeg 90.0 90.0 90.0 chkprim 0 #CHecK whether the cell is PRIMitive natom 11 # prtden 1 #Definition of the atom types ntypat 3 # There are two types of atom znucl 6 1 8 # The keyword "znucl" refers to the atomic number of the # possible type(s) of atom. The pseudopotential(s) # mentioned in the "files" file must correspond # to the type(s) of atom. #Definition of the atoms typat 1 3 3 2 1 2 2 1 2 2 2 xangst 4.012373781 3.528458355 18.257677012 2.961406672 3.654182284 17.667516636 5.201813719 3.548275486 17.625893274 5.011034971 3.694277774 16.668756828 4.165792996 3.352709434 19.725768779 4.926448739 2.570601347 19.902103802 4.628029561 4.283250936 20.110641693 2.860538973 3.063511655 20.407685873 2.980830432 3.031792793 21.501580929 2.447329905 2.096200988 20.079146255 2.112193744 3.831783947 20.155264158 #Definition of the planewave basis set ecut 35.0 # Maximal kinetic energy cut-off, in Hartree #Definition of the SCF procedure nstep 500 # Maximal number of SCF cycles toldfe 1.0d-6 # TOLerance on the DiFference of Forces