Absence of phonon gap driven ultralow lattice thermal conductivity in half-Heusler LuNiBi

X Yu, J Hong - Journal of Materials Chemistry C, 2021 - pubs.rsc.org
Thermoelectric materials are capable of converting waste heat into electricity. Half-Heusler
materials, as one of the promising candidates for thermoelectrics, have a relatively low figure …

Effect of Be and P do** on the electron density, electrical and optoelectronic conduct of half-Heusler LiMgN within ab initio scheme

Y Ziat, Z Zarhri, H Belkhanchi, O Ifguis, AD Cano… - Physica …, 2022 - iopscience.iop.org
The effect of (Be-and P-) dopant has been investigated on the electronic structure and
optoelectronic properties of LiMgN alloy, where the (Be and P) amount is 6.25%. The LiMgN …

Elastic, anisotropic, lattice dynamics and electronic properties of XNiM and XNi2M (X= Ti, Zr, Hf; M= Sn, Ge, Si): DFT comparison study

E Tindibale, WM Mulwa, BI Adetunji - Physica B: Condensed Matter, 2023 - Elsevier
The ab-initio calculations were performed using density functional theory (DFT) as
implemented in the Quantum ESPRESSO (QE) code. Lattice parameter mismatch was …

First principles study on phonon dispersion, mechanical and thermodynamic properties of ThP

MH Sahafi, M Mahdavi - Materials Today Communications, 2021 - Elsevier
In the present study, the density functional theory and the ab initio method in projector
augmented wave (PAW) pseudopotentials framework have been used to calculate the …

A first principles study of stability, electronic and thermoelectric characteristics of novel high temperature half-heusler alloys ScAgX (X= Si, Ge, Sn)

R Rani, MM Sinha - Physica B: Condensed Matter, 2024 - Elsevier
To meet the ever-increasing renewable energy demand Half-Heusler (HH) materials can be
a potential candidate. Heusler materials are seeking popularity as efficient high-temperature …

Elastic anisotropy, mechanical, lattice dynamics, and electronic properties of MPdZ (M= Hf, Zr, Ti; Z= Sn, Ge, Si). DFT study

E Tindibale, WM Mulwa, BI Adetunji - Computational Condensed Matter, 2024 - Elsevier
Elastic anisotropy, mechanical, lattice dynamics, and electronic properties of MPdZ (M= Hf,
Zr, Ti; Z= Sn, Ge, Si) compounds have all been computed from first principles. All …

Cobalt based new ferromagnetic quaternary Heusler alloys for spintronic applications: an ab-initio study

JB Sudharsan, N Punithavelan… - Indian Journal of …, 2024 - Springer
In this paper, we have studied the structural, mechanical, electronic, magnetic and
thermodynamical properties of the Heusler alloys CoNbTiX (X= A l, G a, I n). We used full …

Electronic, mechanical, vibrational and optical properties of TaIrX (X= Ge and sn): a DFT approach

MI Babalola, BE Iyorzor - Molecular Physics, 2022 - Taylor & Francis
First-principles calculation investigated the structural, electronic, mechanical,
thermodynamic, optical properties and the lattice dynamics of 18 valence electron half …

Quasi-harmonic approximation of lattice dynamics and thermodynamic properties of half Heusler ScXSb (x= Ni, Pd, Pt) from first principles

OE Osafile, JO Umukoro - Journal of Physics: Condensed Matter, 2020 - iopscience.iop.org
We report the lattice dynamics and thermodynamic properties of ScXSb (X= Ni, Pd, Pt) half
Heusler compounds. Calculations for the structural and electronic properties were …

Phonon bridge effect in superlattices of thermoelectric tinisn/hfnisn with controlled interface intermixing

S Heinz, EC Angel, M Trapp, HJ Kleebe, G Jakob - Nanomaterials, 2020 - mdpi.com
The implementation of thermal barriers in thermoelectric materials improves their power
conversion rates effectively. For this purpose, material boundaries are utilized and …