Phonon dispersion with VASP

Vasp transition state theory tools

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skm
Posts: 16
Joined: Thu Nov 28, 2019 12:26 pm

Phonon dispersion with VASP

Post by skm »

Hi
Can we calculate and draw Phonon spectrum/dispersion of a 2D material with VASP alone, without using Phonopy? Because i am always getting negative frequency for a material, but for the same material the correct (or no negative frequency) phonon spectrum is obtained using Quantum Espresso.
Regards
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