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 …
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 …
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 …
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 …
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 …
Understanding the electronic structure of atoms, molecules, complexes, solids, surfaces, and nano-structures is helping in realizing the physical, chemical interactions, and predicting …
Electronic excitations play a prominent role in a large variety of physical properties of materials, eg, quantum transport, heat transport, conductivity, and optical properties …