When searching in vasp source code, I could not find out how its unit for stress kB is defined and how to convert it into GPa, could anyone tell me where I could find out answer? Another question, I need to insert noble gas He into silica system. But I found no POTCAR file for He in vasp document. The directory under He is empty. So what should I do with that?
Any help will be apprecited.
I didn't find the right solution from the Internet.