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Dear colleagues,

I was transferring some old work done by VASP4.6 to VASP5.2

And I found there are some changes in the new PBE POTCAR's. For example, IUNSCR and RPACOR were 0 in old PBE POTCAR's; but they are not in potpaw_PBE5.2

I tried to redo the calculations, and found the force convergence is very bad with those new POTCAR's.

My questions are:
(1) can I still use old POTCAR's from VASP4.6 in VASP5.2?
(2) which POTCAR should I use for vdW-DFT and DFT-D2 calculations?

Thank you in advance!

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