A Practical Introduction to Density Functional Theory

TL;DR

This paper provides a practical introduction to performing density functional theory calculations for crystals using Quantum Espresso, aimed at graduate students in condensed matter physics.

Contribution

It offers an accessible, practical guide for students to implement DFT calculations with open source software in solid state physics.

Findings

Guidance on using Quantum Espresso for DFT calculations

Step-by-step instructions suitable for beginners

Focus on crystal structures and solid state applications

Abstract

These lecture notes contain a brief practical introduction to doing density functional theory calculations for crystals using the open source Quantum Espresso software. The level is aimed at graduate students who are studying condensed matter or solid state physics, either theoretical or experimental.