Open AccessDielectric Properties of Deuterated Cesium Dihydrogen Phosphate Crystal
Author(s) -
Muzaffar Iqbal Khan,
Trilok Chandra Upadhyay,
Pawan Singh,
Sidharth Kashyap
Publication year - 2021
Publication title -
journal of mountain research/journal of mountain research
Language(s) - English
Resource type - Journals
eISSN - 2582-5011
pISSN - 0974-3030
DOI - 10.51220/jmr.v16i2.13
Subject(s) - dielectric , hamiltonian (control theory) , deuterium , caesium , crystal (programming language) , tangent , condensed matter physics , thermal , dissipation factor , materials science , crystal structure , thermodynamics , chemistry , atomic physics , physics , quantum mechanics , inorganic chemistry , crystallography , mathematics , mathematical optimization , geometry , computer science , programming language
Modified two sublattice pseudospin lattice coupled-mode model Hamiltonian has been applied to study the dielectric properties of deuterated cesium dihydrogen phosphate crystal. With the help of model Hamiltonian and Green’s function theory, the theoretical expressions for normal mode frequency, dielectric constant and loss tangent are derived. By fitting the model values of different physical parameters, the thermal dependence of the above quantities has been calculated. Our theoretical obtained results are well compared with experimental data.