Ordered PbHPO4 nanowires: Crystal structure, energy bands and optical properties from first principles

Y Shchur, AV Kityk - Computational Materials Science, 2017 - Elsevier
Structural, electronic and high-frequency dielectric properties of both the bulk crystal and the
ordered nanostructured metamaterials, nanolayers (NLs) and nanowires (NWs) of hydrogen …

On thermodynamic and dielectric properties of PbHPO4 and PbHAsO4 crystals

IR Zachek, Y Shchur, RR Levitskii… - Physica B: Condensed …, 2014 - Elsevier
Thermodynamic and dielectric properties of PbHPO 4 and PbHAsO 4 crystals are studied
using the pseudo-spin model for proton subsystem within a two-particle cluster …

Lattice dynamics of Bi3TeBO9 microcrystals: μ-Raman/IR spectroscopic investigation and ab initio analysis

D Kasprowicz, T Zhezhera, A Lapinski… - Journal of Alloys and …, 2019 - Elsevier
A Bi 3 TeBO 9 crystal is an excellent nonlinear optical material as well as an efficient host
matrix for luminescent rare earth ions. Investigated Bi 3 TeBO 9 microcrystals were …

Porous Si partially filled with water molecules—crystal structure, energy bands and optical properties from first principles

Y Shchur, O Pavlyuk, AS Andrushchak, S Vitusevich… - Nanomaterials, 2020 - mdpi.com
The paper reports the results on first-principles investigation of energy band spectrum and
optical properties of bulk and nanoporous silicon. We present the evolution of energy band …

Ab initio study of lattice dynamics of CsH2PO4 and CsD2PO4 crystals

Y Shchur, T Bryk, I Klevets, AV Kityk - Computational Materials Science, 2016 - Elsevier
Lattice dynamics of CsH 2 PO 4 and CsD 2 PO 4 crystals has been studied by density
functional theory in two structural phases (P 2 1/m and P 2 1). The bulk crystal structure …

Phase transition thermal dependence of ferroelectric and dielectric properties in H-bonded (LHP) crystal

MI Khan, TC Upadhyay - Applied Physics A, 2020 - Springer
In this paper, the ferroelectric phase transition and dielectric properties in order-disorder
type PbHPO _ 4 PbHPO 4 crystal are theoretically investigated. We consider the two …

On the mean kinetic energy of the proton in strong hydrogen bonded systems

Y Finkelstein, R Moreh, SL Shang, Y Shchur… - The Journal of …, 2016 - pubs.aip.org
The mean atomic kinetic energies of the proton, Ke (H), and of the deuteron, Ke (D), were
calculated in moderate and strongly hydrogen bonded (HB) systems, such as the ferro …

Study of ferroelectric lead monohydrogen phosphate type crystals

A Rawat, TC Upadhyay - International Journal of Modern Physics B, 2017 - World Scientific
In this paper, the ferroelectric transition and dielectric properties of the lead monohydrogen
phosphate (PbHPO4) crystal are theoretically investigated. By using Green's function …

Study of structural order–disorder thermal dependence dielectric properties for PbHPO4 and PbHAsO4 crystals

MI Khan, TC Upadhyay - The European Physical Journal D, 2021 - Springer
By using the statistical Green function theory and extended two sublattice pseudospin lattice
coupled mode model Hamiltonian for proton subsystem with mean field approximation on …

Understanding the balance of entropy and enthalpy in hydrogen–halide noncovalent bonding

D Bodesheim, G Kieslich, M Johnson… - The Journal of Physical …, 2020 - ACS Publications
Hydrogen bonds are of great scientific interest, determining the free energy landscape and
hence chemical and physical properties of many materials systems, for example, the hybrid …