Effects of Transition Metal Elements on the Electronic, Magnetic, and Mechanical Properties of CePd2In4 and CePt2In4
Year: 2026
Type: article
Abstract: The effects of transition metal substitution on the structural, electronic, magnetic, mechanical, and lattice dynamical properties of CePd 2 In 4 and CePt 2 In 4 intermetallic compounds were systematically investigated using first-principles calculations within the generalized gradient approximation. This work constitutes the first comprehensive theoretical study of these materials. The calculated lattice parameters are in agreement with available experimental data. The mechanical stability of both compounds is confirmed as their second-order elastic constants satisfy the Born stability criteria. Furthermore, phonon dispersion calculations reveal no imaginary frequencies throughout the Brillouin zone, confirming the dynamical stability of both compounds. Analysis of the mechanical properties revealed significant elastic anisotropy. Electronic structure calculations indicate metallic behaviour arising from the overlap between valence and conduction bands. The combination of high average atomic mass and relatively weak bond strength leads to low Debye temperatures and low thermal conductivity. The estimated melting temperatures are relatively high for both compounds, indicating their suitability for high-temperature applications. These findings suggest that CePd 2 In 4 and CePt 2 In 4 compounds may be promising candidates for high-temperature and thermal control applications.
Source: Brazilian Journal of Physics
Authors: Ozgur Deniz Kocaoz, Haci Ozisik, Engin Deligoz
Institution: Aksaray University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,290
Funder: Aksaray Üniversitesi
OpenAlex ID: W7165168469