[Pw_forum] Pseudopotential in calculation of interatomic force constants.

[方子明]

Dear Experts,
I have calculated the IFC for a supercell of a bulk. However, when I chose the PAW pseudopotential, it appears that no convergence has been achieved. While for USPP, the convergence can be achieved. Does this mean PAW can not be used as the pseudopotential to calculate IFC? If not, how can I achieve the convergence?
Best,
ZimingFang




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