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We describe a theoretical and computational approach to calculate the vibrational, elastic, and thermal properties of materials from the low-temperature quantum regime to the high-temperature anharmonic regime. This approach is based on…

材料科学 · 物理学 2024-09-20 Dylan A. Folkner , Zekun Chen , Giuseppe Barbalinardo , Florian Knoop , Davide Donadio

Employing the first-principles computations based on the density functional theory (DFT), we have investigated the structural, mechanical, electronic, bonding, optical and thermodynamics properties of newly discovered bulk superconductors…

材料科学 · 物理学 2018-02-01 Md. Atikur Rahman , Md. Zahidur Rahaman , Md. Lokman Ali , Md. Shahjahan Ali

The elastic properties of $Cu-Al-Mn$ alloys with compositions along the $Cu_3Al \to Cu_2AlMn$ line and $bcc$-based structures, are studied by means of first-principles calculations. From the calculated elastic constants, the Zener's…

材料科学 · 物理学 2020-08-26 Alejandro Alés , Fernando Lanzini

TiCoSb1+x (x=0.0, 0.01, 0.02, 0.03, 0.04, 0.06) samples have been synthesized, employing solid state reaction method followed by arc menting. Theoretical calculations, using Density Functional Theory (DFT) have been performed to estimate…

We investigate the structural, mechanical, and thermoelectric properties of lead-free double halide perovskites Cs2TeX6 (X = Cl, Br, I) using first-principles calculations and semiclassical Boltzmann transport theory. The HSE06 band gap is…

材料科学 · 物理学 2026-02-03 Heena , Vineet Kumar Pandey , Saanvi Marethiya , Ambesh Dixit , Ajay Singh Verma , K. C. Bhamu

Transition metal carbides include a wide variety of materials with attractive properties that are suitable for numerous and diverse applications. Most recent experimental advance could provide a path toward successful synthesis of…

材料科学 · 物理学 2017-04-17 B Mortazavi , M Shahrokhi , M Makaremi , T Rabczuk

The electronic band structure and elastic properties of the Cd${}_{16}$Se${}_{15}$Te solid state solution in the framework of the density functional theory calculations are investigated. The structure of the sample is constructed on the…

材料科学 · 物理学 2021-06-28 A. I. Kashuba , B. Andriyevsky , H. A. Ilchuk , R. Yu. Petrus , T. S. Malyi , I. V. Semkiv

The thermoelectric power (TEP) measurements have been carried out to investigate the changes in the electronic structure associated with the intermartensitic and martensitic transitions in Ni$_{2+x}$Mn$_{1-x}$Ga (0 $\le$ x $\le$ 0.19). The…

LaRh2X2 (X = Al, Ga, In) compounds crystallize in a tetragonal layered ThCr2Si2-type structure and belong to a family of low critical temperature superconductors. Using first-principles density functional theory calculations implemented in…

We present a comprehensive first-principles investigation of optical, transport, and thermoelectric properties of pure and doped hexagonal Si$_x$Ge$_{1-x}$ alloys based on density-functional theory calculations, the Boltzmann transport…

材料科学 · 物理学 2022-05-26 Pedro Borlido , Friedhelm Bechstedt , Silvana Botti , Claudia Rödl

The electronic band structures along with Fermi surface, anisotropy, Vickers hardness, analysis of Mulliken populations, optical and thermodynamic properties were studied for the first time. The optimized unit cell parameters are compared…

材料科学 · 物理学 2018-08-22 P. Barua , M. M. Hossain , M. A. Ali , M. M. Uddin , S. H. Naqib , A. K. M. A. Islam

Structural and elastic properties of Ba$_{2}$P$_{7}$X (X=Cl, Br, I) (Barium Phosphide Halides) Zintl compounds have been investigated using the pseudo-potential plane-wave (PP-PW) method based on the density functional theory (DFT) within…

材料科学 · 物理学 2019-10-03 M. Radjai , D. Maouche , N. Guechi , S. Cheddadi , Z. Kechidi

Through first-principles calculation based on the density functional theory (DFT) within the pseudo potential-plane wave (PP-PW) approach, we studied the structural, mechanical and thermal properties of Cu$_2$CdSnSe$_4$ and Cu$_2$HgSnSe$_4$…

材料科学 · 物理学 2017-02-13 S. Bensalem , M. Chegaar , A. Bouhemadou

The elastic, thermodynamic, and electronic properties of fluorite RuO_2 under high pressure are investigated by plane-wave pseudopotential density functional theory. The optimized lattice parameters, elastic constants, bulk modulus, and…

材料科学 · 物理学 2017-08-23 Z. J. Yang , A. M. Guo , Y. D. Guo , J. Li , Z. Wang , Q. Liu , R. F. Linghu , X. D. Yang

We present a detailed density functional theory based calculations of the structural, elastic, lattice dynamical, thermophysical, and optoelectronic properties of ternary semiconductors CaZn$_2$X$_2$ (X = N, P, As) in this paper. The…

材料科学 · 物理学 2022-11-01 Md. Sajidul Islam , Razu Ahmed , Md. Mahamudujjaman , R. S. Islam , S. H. Naqib

By performing density functional theory (DFT) +$U$ calculations, we systematically study the electronic, mechanical, tensile, and thermodynamic properties of AmO$_{2}$. The experimentally observed antiferromagnetic insulating feature [J.…

材料科学 · 物理学 2012-11-05 Yong Lu , Yu Yang , Fawei Zheng , Bao-Tian Wang , Ping Zhang

Based on density functional theory, we have systematically studied the structural stability, mechanical properties and chemical bonding of the transition metal borides M3B4 (M=Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W) for the first time. All…

材料科学 · 物理学 2015-03-09 Naihua Miao , Baisheng Sa , Jian Zhou , Zhimei Sun

The structural, electronic, optical and thermodynamic properties of Mo2Ga2C are investigated using density functional theory (DFT) within the generalized gradient approximation (GGA). The optimized crystal structure is obtained and the…

材料科学 · 物理学 2017-04-18 M. A. Ali , M. R. Khatun , N. Jahan , M. M. Hossain

The discovery of MAX phase borides has added a new dimension for research in the materials science community. In this paper, a first-principles study of the newly known MAX phase borides Zr2AB2 (A = In, Tl) has been carried out. The…

材料科学 · 物理学 2022-02-15 M. A. Ali , M. M. Hossain , M. M. Uddin , A. K. M. A. Islam , S. H. Naqib

We have used density functional theory to study the recently predicted MAX phase borides Hf2AB (A = Pb, Bi) in where the mechanical, electronic, thermal, and optical properties have been investigated for the first time. A good agreement of…

材料科学 · 物理学 2021-01-15 M. S. Hossain , M. A. Ali , M. M. Hossain , M. M. Uddin