#LAMMPS in.run 
 
units           metal
atom_style      spin
# atom_style      spin/kk
atom_modify     map array
boundary        p p p

# read_data     singlespin.data

lattice         sc 3.0
region          box block 0.0 1.0 0.0 1.0 0.0 1.0
create_box      1 box
create_atoms    1 box

mass            1 1.0
set             type 1 spin 1.0 0.0 0.0 1.0

# defines a pair/style for neighbor list, but do not use it
pair_style      spin/exchange 4.0
pair_coeff      * * exchange 1.0 0.0 0.0 1.0

group bead      type 1  
 
variable        H equal 10.0
variable        Kan equal 0.0
variable        Temperature equal temperature
variable        RUN equal 1000000

fix             1 all nve/spin lattice no
fix             2 all precession/spin zeeman ${H} 0.0 0.0 1.0 anisotropy ${Kan} 0.0 0.0 1.0
fix_modify      2 energy yes
fix             3 all langevin/spin ${Temperature} 0.01 12345

compute         compute_spin all spin
compute         outsp all property/atom spx spy spz sp
compute         magsz all reduce ave c_outsp[3]

thermo          50000
thermo_style    custom step time temp vol pe c_compute_spin[5] etotal  

variable        magnetic_energy equal c_compute_spin[5]

fix             avespin all ave/time 1 ${RUN} ${RUN} v_Temperature v_H v_Kan c_magsz v_magnetic_energy file average_spin

timestep        0.1
run             ${RUN}