Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations

I Timrov, N Marzari, M Cococcioni - Physical Review B, 2021 - APS
The self-consistent evaluation of Hubbard parameters using linear-response theory is
crucial for quantitatively predictive calculations based on Hubbard-corrected density …

Extensive Benchmarking of DFT+U Calculations for Predicting Band Gaps

NE Kirchner-Hall, W Zhao, Y **ong, I Timrov, I Dabo - Applied Sciences, 2021 - mdpi.com
Accurate computational predictions of band gaps are of practical importance to the modeling
and development of semiconductor technologies, such as (opto) electronic devices and …

[HTML][HTML] HP–A code for the calculation of Hubbard parameters using density-functional perturbation theory

I Timrov, N Marzari, M Cococcioni - Computer Physics Communications, 2022 - Elsevier
We introduce HP, an implementation of density-functional perturbation theory, designed to
compute Hubbard parameters (on-site U and inter-site V) in the framework of DFT+U and …

Density functional theory modeling of critical properties of perovskite oxides for water splitting applications

KK Ghose, JJ Brown, TJ Frankcombe… - Wiley …, 2023 - Wiley Online Library
Water splitting (WS) driven by solar energy is considered as a promising strategy to produce
renewable hydrogen from water with minimal environmental impact. Realization of large …

Self-consistent study of oxygen vacancies in

C Ricca, I Timrov, M Cococcioni, N Marzari… - Physical review …, 2020 - APS
Contradictory theoretical results for oxygen vacancies in SrTiO 3 (STO) were often related to
the peculiar properties of STO, which is ad 0 transition metal oxide with mixed ionic-covalent …

High-throughput determination of Hubbard and Hund values for transition metal oxides via the linear response formalism

GC Moore, MK Horton, E Linscott, AM Ganose… - Physical Review …, 2024 - APS
DFT+ U provides a convenient, cost-effective correction for the self-interaction error (SIE)
that arises when describing correlated electronic states using conventional approximate …

Pivotal Role of Intersite Hubbard Interactions in Fe-Doped α-MnO2

R Mahajan, A Kashyap, I Timrov - The Journal of Physical …, 2022 - ACS Publications
We present a first-principles investigation of the structural, electronic, and magnetic
properties of the pristine and Fe-doped α-MnO2 using density-functional theory with …

Hubbard U through polaronic defect states

S Falletta, A Pasquarello - npj Computational Materials, 2022 - nature.com
Since the preliminary work of Anisimov and co-workers, the Hubbard corrected DFT+ U
functional has been used for predicting properties of correlated materials by applying on-site …

Pulay forces in density-functional theory with extended Hubbard functionals: From nonorthogonalized to orthogonalized manifolds

I Timrov, F Aquilante, L Binci, M Cococcioni, N Marzari - Physical Review B, 2020 - APS
We present a derivation of the exact expression for Pulay forces in density-functional theory
calculations augmented with extended Hubbard functionals and arising from the use of …

Unraveling the effects of inter-site Hubbard interactions in spinel Li-ion cathode materials

I Timrov, M Kotiuga, N Marzari - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
Accurate first-principles predictions of the structural, electronic, magnetic, and
electrochemical properties of cathode materials can be key in the design of novel efficient Li …