Using different pseudopotentials for the same element

Queries about input and output files, running specific calculations, etc.


Moderators: Global Moderator, Moderator

Post Reply
Message
Author
pablo_castro
Newbie
Newbie
Posts: 1
Joined: Wed Mar 17, 2021 1:59 pm

Using different pseudopotentials for the same element

#1 Post by pablo_castro » Tue Apr 06, 2021 11:05 am

Greetings!

I am calculating CeO2 surfaces with oxygen vacancies. Is it possible to use Ce_3 pseudopotential for the neighboring atoms of the vacancy and Ce pseudopotential for the rest of Ce atoms in the cell?
How can I differentiate Ce_3 from Ce atoms in the POSCAR file?

Thank you very much

ferenc_karsai
Global Moderator
Global Moderator
Posts: 460
Joined: Mon Nov 04, 2019 12:44 pm

Re: Using different pseudopotentials for the same element

#2 Post by ferenc_karsai » Tue Apr 06, 2021 2:31 pm

You have to provide the number and order of different elements in the POSCAR file:
https://www.vasp.at/wiki/index.php/POSCAR

You have to provide a POTCAR file for each element and concatenate them into one final POTCAR file.
The POTCAR files of each element can be any.

Post Reply