How to make the stress less than 0.1kBa in VASP?

[nfpczhangwei]

Dear all,
I am a beginner of VASP, recently I often see the authors say they make stresses in a relaxed structure less than 0.1 kBa, but I found my calculations often have strss less than 1kBa in x y z directions, so my question is how can make stresses in a relaxed structure less than 0.1 kBa? Thanks!

[graeme]

You can set ISIF=3 to relax the stress.

[nfpczhangwei]

[quote="graeme"]You can set ISIF=3 to relax the stress.[/quote]
Thanks, Dr. Graeme, I often use ISIF=3 to relax the stress, but the stress in x y z directions are all less than 1kBa,
So I am very want to know how do they make stress less than 0.1kBa?

[graeme]

You can lower ediffg e.g. to -0.001 and continue relaxing.