Research Articles
Optimizing Step Size in Finite Displacement Phonon Calculations: A Guide for Accuracy and Efficiency
Finite displacement method is a cornerstone technique for first-principles phonon calculations, essential for determining dynamical stability, thermal properties, and phase transitions in materials.
Implementing Acoustic Sum Rule Corrections in Phonon Calculations: A Comprehensive Guide for Computational Materials Science
This article provides a complete resource for researchers implementing acoustic sum rule (ASR) corrections in phonon calculations.
Navigating Phonon Calculations in Distorted Materials: From Foundational Theory to Advanced Computational Solutions
This article provides a comprehensive guide for researchers and scientists on accurately predicting phonon properties in materials with structural distortions.
Green-Kubo Modal Analysis (GKMA): A Unified Framework for Thermal Conductivity in Disordered Solids
This article provides a comprehensive exploration of Green-Kubo Modal Analysis (GKMA), a powerful computational formalism for calculating modal contributions to thermal conductivity in complex materials.
Beyond Quasiparticles: Understanding Phonon Gas Model Limitations for Optical Modes in Complex Materials
The phonon gas model (PGM), which treats phonons as weakly interacting, particle-like carriers, provides a foundational framework for understanding thermal transport in simple crystals.
Acoustic Sum Rule (ASR) Violation in Phonon Calculations: A Comprehensive Guide from Fundamentals to Troubleshooting
This article provides a comprehensive examination of the Acoustic Sum Rule (ASR) in phonon frequency calculations, a critical aspect of lattice dynamics in materials science.
Negative Phonon Frequencies: A Definitive Guide to Diagnosing Material Instability
This article provides a comprehensive analysis of negative phonon frequencies in phonon spectra, a critical indicator of material dynamical instability.
Tetrahedron vs. Gaussian Methods for Density of States: A Guide for Materials and Drug Discovery
This article provides a comprehensive comparison of the Tetrahedron and Gaussian smearing methods for calculating the electronic Density of States (DOS), a critical property in materials science and drug development.
Optimizing k-Space Sampling for Accurate Density of States Calculations in Metallic Systems: A Guide for Computational Materials Scientists
Calculating reliable Density of States (DOS) for metallic systems presents significant challenges in computational materials science, primarily due to the stringent requirements for k-space sampling near the Fermi level.
Beyond SCF Convergence: Why and How to Use Finer k-Point Grids for Accurate Density of States Calculations
This article provides a comprehensive guide for computational researchers on the critical practice of using a denser k-point mesh for post-SCF Density of States (DOS) calculations than for the initial...