2018-03-27 03:30:36 +08:00
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# start a spin-lattice simulation from a data file
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2018-02-09 02:15:01 +08:00
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clear
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2018-03-27 03:30:36 +08:00
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units metal
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atom_style spin
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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dimension 3
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boundary p p p
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2018-02-09 02:15:01 +08:00
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2018-03-23 01:41:04 +08:00
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# necessary for the serial algorithm (sametag)
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2018-03-27 03:30:36 +08:00
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atom_modify map array
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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lattice fcc 3.54
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region box block 0.0 5.0 0.0 5.0 0.0 5.0
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create_box 1 box
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2018-02-09 02:15:01 +08:00
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2018-05-12 05:24:26 +08:00
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read_dump ../examples/SPIN/read_restart/Norm_randXY_8x8x32.dump 0 x y z box yes
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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create_atoms 1 box
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2018-02-09 02:15:01 +08:00
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# setting mass, mag. moments, and interactions
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mass 1 58.93
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2018-03-27 03:30:36 +08:00
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set group all spin 1.72 0.0 0.0 1.0
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set group single_spin spin/random 11 1.72
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velocity all create 200 4928459 rot yes dist gaussian
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2018-02-09 02:15:01 +08:00
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2018-03-23 01:41:04 +08:00
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# define magneto-mechanical potentials and forces
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2018-02-09 02:15:01 +08:00
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2018-05-12 05:24:26 +08:00
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pair_style hybrid/overlay eam/alloy spin/exchange 4.0
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2018-03-27 03:30:36 +08:00
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pair_coeff * * eam/alloy ../examples/SPIN/Co_PurjaPun_2012.eam.alloy Co
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2018-05-12 05:24:26 +08:00
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pair_coeff * * spin/exchange exchange 4.0 0.0446928 0.003496 1.4885
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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neighbor 1.0 bin
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neigh_modify every 1 check no delay 0
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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fix 1 all precession/spin zeeman 0.0 0.0 0.0 1.0
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fix 2 all langevin/spin 0.0 0.0 0.0 21
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fix 3 all nve/spin lattice yes
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2018-02-09 02:15:01 +08:00
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timestep 0.0001
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2018-03-23 01:41:04 +08:00
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# define outputs
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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compute out_mag all compute/spin
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compute out_pe all pe
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compute out_ke all ke
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compute out_temp all temp
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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variable magz equal c_out_mag[4]
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variable magnorm equal c_out_mag[5]
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variable emag equal c_out_mag[6]
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variable tmag equal c_out_mag[7]
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2018-02-09 02:15:01 +08:00
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thermo 10
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thermo_style custom step time v_magnorm v_emag v_tmag temp etotal
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thermo_modify format float %20.15g
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2018-03-27 03:30:36 +08:00
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compute outsp all property/atom spx spy spz sp fmx fmy fmz
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dump 100 all custom 1 dump.lammpstrj type x y z c_outsp[1] c_outsp[2] c_outsp[3] c_outsp[4] c_outsp[5] c_outsp[6] c_outsp[7]
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2018-02-09 02:15:01 +08:00
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2018-03-27 03:30:36 +08:00
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run 1000
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2018-02-09 02:15:01 +08:00
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