Dear all,<div><br /></div><div>I am trying to optimize a bulk nickel with 96 atoms. As Ni is supposed to be ferromagnetic, I performed the optimization with a multiplicity of 96*2+1=193 but the energy couldn't converge within 500 SCF steps. However, I found that it could converge if I only change the multiplicity to its default value (1). </div><div><br /></div><div>My inputs and outputs for both cases are attached, the only difference between these two cases is the multiplicity in the input file (one is 1 while the other is 193). I am wondering why the optimization couldn't converge with the specific multiplicity and I would appreciate any ideas on how to figure out this issue.</div><div><br /></div><div>Many thanks,</div><div>Geng</div>
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