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Dear Admin,
I have a confusion. wiki/index.php/LCALCEPS - in VASP 5.4.4 the sign of piezoelectric tensors is negative. Is it same for LEPSILON too (I did calculations with LEPSILON =T).
I got similar results with VASP 5.4.4 and VASP 6 versions.
Could you clarify which signs are negative? do they show opposite signs?
results for version 5.4.4
results from version 6 Thanks,
Prince

Hi,

Thank you very much for your inquiry about the piezoelectric tensor. Probably, the confusion is due to the sign of the stress tensor, see ISIF. To assist you further, we recommend sharing the input and output files as per the forum guidelines.

Cheers,
Marie-Therese