# fcc cobalt in a 3d box

clear 
units metal
atom_style spin

dimension 3
boundary p p f

# check why?
atom_modify map array 

lattice fcc 3.54
region box block 0.0 50.0 0.0 50.0 0.0 4.0
create_box 1 box
create_atoms 1 box

# setting mass, mag. moments, and interactions for cobalt

mass		1 58.93

set group all spin/random 31 1.72

#pair_style hybrid/overlay eam/alloy pair/spin/exchange 4.0 pair/spin/soc/neel 4.0
pair_style hybrid/overlay pair/spin/exchange 4.0 pair/spin/soc/dmi 2.6
pair_coeff * * pair/spin/exchange exchange 4.0 0.0446928 0.003496 1.4885
pair_coeff * * pair/spin/soc/dmi dmi 2.6 0.01 0.0 0.0 1.0 
#pair_coeff * * pair/spin/soc/neel neel 4.0 0.003330282 0.864159 2.13731 

neighbor 0.1 bin
neigh_modify every 10 check yes delay 20

fix 1 all force/spin anisotropy 0.0001 0.0 0.0 1.0
fix 2 all langevin/spin 0.0 0.1 0.0 21

fix 3 all integration/spin lattice no

timestep	0.0002

# define output and run

compute out_mag    all compute/spin
variable magz      equal c_out_mag[4]
variable magnorm   equal c_out_mag[5]
variable emag      equal c_out_mag[6]
variable tmag      equal c_out_mag[7]
variable mag_force equal f_1

thermo_style    custom step time v_magnorm v_emag etotal
thermo          50

dump 1 all custom 50 dump_skyrmion.lammpstrj type x y z spx spy spz

run 10000