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 …

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 …

Accurate and Numerically Efficient r2SCAN Meta-Generalized Gradient Approximation

JW Furness, AD Kaplan, J Ning… - The journal of physical …, 2020 - ACS Publications
The recently proposed rSCAN functional [J. Chem. Phys. 2019 150, 161101] is a regularized
form of the SCAN functional [Phys. Rev. Lett. 2015 115, 036402] that improves SCAN's …

The predictive power of exact constraints and appropriate norms in density functional theory

AD Kaplan, M Levy, JP Perdew - Annual Review of Physical …, 2023 - annualreviews.org
Ground-state Kohn-Sham density functional theory provides, in principle, the exact ground-
state energy and electronic spin densities of real interacting electrons in a static external …

Self-interaction error overbinds water clusters but cancels in structural energy differences

K Sharkas, K Wagle, B Santra, S Akter, RR Zope… - Proceedings of the …, 2020 - pnas.org
We gauge the importance of self-interaction errors in density functional approximations
(DFAs) for the case of water clusters. To this end, we used the Fermi–Löwdin orbital self …

Understanding density-driven errors for reaction barrier heights

AD Kaplan, C Shahi, P Bhetwal, RK Sah… - Journal of Chemical …, 2023 - ACS Publications
Delocalization errors, such as charge-transfer and some self-interaction errors, plague
computationally efficient and otherwise accurate density functional approximations (DFAs) …

Piecewise linearity, freedom from self-interaction, and a Coulomb asymptotic potential: three related yet inequivalent properties of the exact density functional

L Kronik, S Kümmel - Physical Chemistry Chemical Physics, 2020 - pubs.rsc.org
The exact energy functional of density functional theory (DFT) is well known to obey various
constraints. Three conditions that must be obeyed by the exact energy functional, but may or …

What types of chemical problems benefit from density-corrected DFT? A probe using an extensive and chemically diverse test suite

G Santra, JML Martin - Journal of chemical theory and …, 2021 - ACS Publications
For the large and chemically diverse GMTKN55 benchmark suite, we have studied the
performance of density-corrected density functional theory (HF-DFT), compared to self …

[HTML][HTML] Reaction barriers at metal surfaces computed using the random phase approximation: Can we beat DFT in the generalized gradient approximation?

B Oudot, K Doblhoff-Dier - The Journal of Chemical Physics, 2024 - pubs.aip.org
Reaction barriers for molecules dissociating on metal surfaces (as relevant to
heterogeneous catalysis) are often difficult to predict accurately with density functional …

Pressure-Dependent Magnetic Properties of Quasi-2D Cr2Si2Te6 and Mn3Si2Te6

R Olmos, PH Chang, P Mishra, RR Zope… - The Journal of …, 2023 - ACS Publications
Recently, pressure has been used to induce structural and magnetic phase transitions in
many layered quantum materials whose layers are linked by van der Waals forces. Materials …