Vibrational and magnetic properties of crystalline CuTe2O5

TL;DR

This paper uses ab initio density functional theory to analyze vibrational and magnetic properties of CuTe2O5, successfully matching experimental data and demonstrating the method's usefulness for low-dimensional magnetic systems.

Contribution

It presents a combined computational approach to study vibrational and magnetic properties of CuTe2O5, validating DFT against experimental data.

Findings

Calculated vibrational spectra agree with Raman and infrared data.

Heat capacity calculations match experimental measurements.

DFT complements experimental studies of magnetic systems.

Abstract

In the present work we have performed an ab initio calculation of vibrational properties of CuTe2O5 by means of density functional theory method. One has compared calculated values with known experimental data on Raman and infrared spectroscopy in order to verify the obtained results. Lattice contribution to the heat capacity, obtained from the ab initio simulations was added to magnetic contribution calculated from the simple spin hamiltonian model in order to obtain total heat capacity. Obtained result are in good agreement to the experimental data. Thus, the DFT methods could complement the experimental and theoretical studying of low-dimensional magnetic systems such as CuTe2O5.