Compute phonon spectra, DOS, and thermodynamic data from DFT forces.
npx skills add https://github.com/Hello-QM/catgo-LRG --skill phonopy-hello-qm
Please help me install this Agent Skill. Skill: phonopy Source: https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/phonopy Command: npx skills add https://github.com/Hello-QM/catgo-LRG --skill phonopy-hello-qm
Phonopy enables automated vibrational analysis by performing finite-displacement phonon calculations to obtain phonon spectra, DOS, and thermodynamic properties for materials.
Run Phonopy on a fully relaxed structure to generate phonon properties.
High-intent search queries and answers about installing and using this skill.
To calculate phonon band structure and DOS, Phonopy applies a finite-displacement method to a fully relaxed structure, generating displaced supercells for a compatible DFT code to compute the forces required for vibrational analysis.
Yes, Phonopy is compatible with common DFT codes including VASP, QE, and ABINIT, requiring force calculations on the displaced supercells generated by the workflow to derive vibrational properties.
You can check dynamical stability by computing the phonon spectra to identify imaginary modes, which indicate structural instability in the relaxed material.
Phonon calculations yield thermodynamic data including heat capacity, entropy, and free energy, derived from the vibrational properties of the material.
Yes, you must provide a fully relaxed structure generated by a DFT code before computing vibrational properties, as the finite-displacement workflow depends on accurate baseline atomic positions.
The finite-displacement method requires force calculations on displaced supercells to numerically construct the dynamical matrix, which is then solved to obtain phonon spectra and thermodynamic data.
jinzhezenggroupGenerate VASP relaxation input sets from a user structure and DFT settings.
Hongyu-yuAnalyzes Phonopy outputs and YAML to load and plot phonon band structures, DOS, Gruneisen, IR spectra.
jkitchinBuild ASE atomistic structures and run simulations with calculators.
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