Thermal lines and special displacements with YamboPy: Difference between revisions

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In the file [https://www.attaccalite.com/tutorials_yambo/Diamond_Phonons.tgz Diamond_Phonons.tgz] you will find all inputs to generate phonon band
In the file [https://www.attaccalite.com/tutorials_yambo/Diamond_Phonons.tgz Diamond_Phonons.tgz] you will find all inputs to generate phonon band
structure report below:
structure report below:
[[File:Diamond_phonons.png|300px]]


=== Phonon interpolation in the BZ ===
=== Phonon interpolation in the BZ ===

Revision as of 11:46, 8 September 2025

THIS TUTORIAL IS FOR INTERNAL USE ONLY 

In this tutorial we show how to generate Thermal Lines[1]. and Special Displacements[2] with YamboPy and then use them to calculate different properties at finite temperature.
We will start from phonon calculations, interpolation of phonon modes, generation of thermal lines/special displacements supercells and finally calculation of electronic properties ad finite temperature.
This tutorial requires a deep knowledge of phonon calculations, and the study of Refs.[1],[2].

Phonons

Phonon calculation

In order to generate Thermal-lines or Special Displacements we need a converged phonon calculation. We will take as example bulk Diamond.
In the file Diamond_Phonons.tgz you will find all inputs to generate phonon band structure report below:

Diamond phonons.png

Phonon interpolation in the BZ

Thermal-lines/Special Displacements

References

  1. 1.0 1.1 Vibrational averages along thermal lines, Bartomeu Monserrat, Phys. Rev. B 93, 014302 (2016)
  2. 2.0 2.1 Theory of the special displacement method for electronic structure calculations at finite temperature, Marios Zacharias, Feliciano Giustino, Phys. Rev. Research 2, 013357 (2020)