Sisl

Overview

sisl is an open-source density functional theory API framework designed for post-analyzing output from density functional theory codes and conducting tight-binding calculations. The framework is versatile as it integrates with various density functional theory codes and has a strong connection with LCAO codes like Siesta. sisl stands out with its support for non-equilibrium Green function calculations using TBtrans as a backend.

Features

• Simple command-line interface: Extract or plot calculation outputs efficiently.
• Tight-binding API: Easy creation of tight-binding matrices for electronic structure analysis.
• Manipulation of sparse matrices: Extract, replace, append matrices, and sub-matrices seamlessly.
• Post-analyze DFT simulations: Conduct density of states, inverse participation ratio, and more on LCAO Hamiltonians.
• Post-analyze NEGF simulations: Create and analyze NEGF outputs effectively with TBtrans.
• Real-space grid analysis: Perform operations on DFT real-space grid outputs.
• Conversion of geometries and real-space grid: Convert geometry files and real-space grid file formats easily.
• User-contributed toolboxes: Share methodologies through contributed toolboxes.
• Interoperability with other codes: Seamless integration with ASE and pymatgen.

Summary

sisl is a powerful framework for post-analyzing density functional theory outputs and conducting tight-binding calculations. With features like a simple command-line interface, manipulation of sparse matrices, and interoperability with other codes, sisl offers a comprehensive solution for researchers in the field of computational materials science.