Performance of Tao–Mo Semilocal Functional with rVV10 Dispersion-Correction: Influence of Different Correlation

A Patra, S Jana, P Samal - The Journal of Physical Chemistry A, 2019 - ACS Publications
We construct van der Waals corrected semilocal density functionals based on the Tao–Mo
(TM)(Phys. Rev. Lett. 2016, 117, 073001) metageneralized gradient approximation …

Semianalytical wavefunctions and Kohn–Sham exchange-correlation potentials for two-electron atomic systems in two-dimensions

R Singh, A Kumar, MK Harbola… - Journal of Physics B …, 2020 - iopscience.iop.org
We propose accurate semianalytical wavefunctions for two-electron atomic systems in two-
dimensions. These wavefunctions take into account the cusp conditions arising due to the …

Density functional approach to the band gaps of finite and periodic two-dimensional systems

A Guandalini, A Ruini, E Räsänen, CA Rozzi, S Pittalis - Physical Review B, 2021 - APS
We present an approach based on density functional theory for the calculation of
fundamental gaps of both finite and periodic two-dimensional (2D) electronic systems. The …

Colle-Salvetti type correlation functionals for two-dimensional quantum dot systems

A Patra, P Samal - Chemical Physics Letters, 2019 - Elsevier
Colle-Salvetti type energy functionals for dynamical correlation are constructed for two-
dimensional quantum systems. These correlation functionals depend on the 2D-Becke88 …

[PDF][PDF] Assessment and Benchmarking of Proposed Exchange-Correlation Approximations in Density Functional Theory

S Jana, P Samal - 2021 - idr.niser.ac.in
The basis constituents of any material that we experience every day are built up from nuclei
and electrons. Electrons which are the quantum particles repel each other due to Coulomb …

Adiabatic connection in density functional theory in two-dimensions: A semi-analytic wavefunction based study for two-electron atomic systems

R Singh, B Patra, A Patra, MK Harbola… - The Journal of Chemical …, 2019 - pubs.aip.org
This work focuses on studying the adiabatic-connection in density functional theory in two
dimensions. It employs a recently developed accurate form of wavefunction for two-electron …

[PDF][PDF] Advance density functionals based on model exchange holes for a wide range of molecular and sold state systems

A Patra, P Samal - 2022 - idr.niser.ac.in
Understanding the electronic structure of atoms, molecules, complexes, solids, surfaces, and
nano-structures is helping in realizing the physical, chemical interactions, and predicting …

Eccitazioni cariche e neutre non lineari in sistemi a bassa dimensionalità e molecolari mediante l'utilizzo di approcci basati sui funzionali della densità

A Guandalini - 2020 - iris.unimore.it
Electronic excitations play a prominent role in a large variety of physical properties of
materials, eg, quantum transport, heat transport, conductivity, and optical properties …