DFT exchange: sharing perspectives on the workhorse of quantum chemistry and materials science

AM Teale, T Helgaker, A Savin, C Adamo… - Physical chemistry …, 2022 - pubs.rsc.org
In this paper, the history, present status, and future of density-functional theory (DFT) is
informally reviewed and discussed by 70 workers in the field, including molecular scientists …

Delocalization error: The greatest outstanding challenge in density‐functional theory

KR Bryenton, AA Adeleke, SG Dale… - Wiley Interdisciplinary …, 2023 - Wiley Online Library
Every day, density‐functional theory (DFT) is routinely applied to computational modeling of
molecules and materials with the expectation of high accuracy. However, in certain …

[HTML][HTML] Exchange-correlation functionals for band gaps of solids: benchmark, reparametrization and machine learning

P Borlido, J Schmidt, AW Huran, F Tran… - npj Computational …, 2020 - nature.com
We conducted a large-scale density-functional theory study on the influence of the exchange-
correlation functional in the calculation of electronic band gaps of solids. First, we use the …

Conceptual density functional theory based electronic structure principles

D Chakraborty, PK Chattaraj - Chemical Science, 2021 - pubs.rsc.org
In this review article, we intend to highlight the basic electronic structure principles and
various reactivity descriptors as defined within the premise of conceptual density functional …

Replacing hybrid density functional theory: motivation and recent advances

BG Janesko - Chemical Society Reviews, 2021 - pubs.rsc.org
Density functional theory (DFT) is the most widely-used electronic structure approximation
across chemistry, physics, and materials science. Every year, thousands of papers report …

Understanding band gaps of solids in generalized Kohn–Sham theory

JP Perdew, W Yang, K Burke, Z Yang… - Proceedings of the …, 2017 - pnas.org
The fundamental energy gap of a periodic solid distinguishes insulators from metals and
characterizes low-energy single-electron excitations. However, the gap in the band structure …

Challenges for density functional theory

AJ Cohen, P Mori-Sánchez, W Yang - Chemical reviews, 2012 - ACS Publications
Density functional theory (DFT) of electronic structure has made an unparalleled impact on
the application of quantum mechanics to interesting and challenging problems in chemistry …

Multi-fidelity machine learning models for accurate bandgap predictions of solids

G Pilania, JE Gubernatis, T Lookman - Computational Materials Science, 2017 - Elsevier
We present a multi-fidelity co-kriging statistical learning framework that combines variable-
fidelity quantum mechanical calculations of bandgaps to generate a machine-learned model …

Excitation gaps of finite-sized systems from optimally tuned range-separated hybrid functionals

L Kronik, T Stein, S Refaely-Abramson… - Journal of Chemical …, 2012 - ACS Publications
Excitation gaps are of considerable significance in electronic structure theory. Two different
gaps are of particular interest. The fundamental gap is defined by charged excitations, as the …

An empirical, yet practical way to predict the band gap in solids by using density functional band structure calculations

Á Morales-García, R Valero, F Illas - The Journal of Physical …, 2017 - ACS Publications
Band structure calculations based on density functional theory (DFT) with local or gradient-
corrected exchange-correlation potentials are known to severely underestimate the band …