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15216105346

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[求助] castep计算两个铝离子能量失败的困惑!

castep计算两个铝离子相距1A的势能,共6个电荷,没考虑自旋,总是计算失败(计算两个铝原子和单独计算一个铝离子就能成功)
请帮我看看参数设置那里有问题?


错误提示如下:

Error in parameters file: NELECTRONS<=0.0
Error in parameters file: nelectrons /= nup + ndown
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0



参数设置如下:

comment : CASTEP calculation from Materials Studio
task : SinglePoint
xc_functional : PBE
charge :        6
spin_polarized : false
opt_strategy : Default
page_wvfns :        0
cut_off_energy :      300.000000000000000
grid_scale :        1.750000000000000
fine_grid_scale :        2.100000000000000
finite_basis_corr :        0
elec_energy_tol :   1.000000000000000e-006
max_scf_cycles :      300
fix_occupancy : false
metals_method : dm
mixing_scheme : Pulay
mix_charge_amp :        0.500000000000000
mix_charge_gmax :        1.500000000000000
mix_history_length :       20
nextra_bands :        4
smearing_width :        0.100000000000000
calculate_ELF : false
calculate_stress : false
popn_calculate : true
calculate_hirshfeld : true
calculate_densdiff : false
popn_bond_cutoff :        3.000000000000000
pdos_calculate_weights : false
num_dump_cycles : 0
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