Doped Perovskite Structure Analysis Guide

A systematic workflow for studying dopant effects on crystal structures using first-principles calculations.

Workflow Overview

Modeling -> Preliminary Optimization -> Precise Calculation -> Analysis

Core Steps:

1. Acquisition: Download crystal structure from Materials Project
2. Model Construction: Build supercell and create doping model with pymatgen
3. Structural Optimization: Perform DFT relaxation using VASP
4. Result Analysis: Calculate and compare XRD patterns

Step 1: Download Base Structure from Materials Project

Use pymatgen to fetch the SrTiO3 structure (mp-5229):