# fcc cobalt in a 3d periodic box clear units metal atom_style spin dimension 3 boundary p p p # necessary for the serial algorithm (sametag) atom_modify map array lattice fcc 3.54 region box block 0.0 5.0 0.0 5.0 0.0 5.0 create_box 1 box create_atoms 1 box # setting mass, mag. moments, and interactions for fcc cobalt mass 1 58.93 #set group all spin/random 31 1.72 set group all spin 1.72 0.0 0.0 1.0 velocity all create 100 4928459 rot yes dist gaussian pair_style hybrid/overlay eam/alloy spin/exchange 4.0 pair_coeff * * eam/alloy Co_PurjaPun_2012.eam.alloy Co pair_coeff * * spin/exchange exchange 4.0 0.0446928 0.003496 1.4885 neighbor 0.1 bin neigh_modify every 10 check yes delay 20 fix 1 all precession/spin zeeman 1.0 0.0 0.0 1.0 fix_modify 1 energy yes fix 2 all langevin/spin 0.0 0.0 21 fix 3 all nve/spin lattice moving timestep 0.0001 # compute and output options compute out_mag all spin compute out_pe all pe compute out_ke all ke compute out_temp all temp variable magx equal c_out_mag[1] variable magy equal c_out_mag[2] variable magz equal c_out_mag[3] variable magnorm equal c_out_mag[4] variable emag equal c_out_mag[5] variable tmag equal c_out_mag[6] thermo_style custom step time v_magx v_magy v_magnorm pe v_emag temp etotal thermo 50 # compute outsp all property/atom spx spy spz sp fmx fmy fmz # dump 1 all custom 100 dump_cobalt_fcc.lammpstrj type x y z c_outsp[1] c_outsp[2] c_outsp[3] run 1000