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Lattice parameter, electronic structure, mechanical and thermodynamic properties of ThN are systematically studied using the projector-augmented-wave method and the generalized gradient approximation based on the density functional theory.…

材料科学 · 物理学 2015-05-20 Yong Lu , Dafang Li , Bao-Tian Wang , Rong-Wu Li , Ping Zhang

Using first principles calculations, we systematically study the elastic stiffness constants, mechanical properties, elastic wave velocities, Debye temperature, melting temperature, and specific heat of several thermodynamically stable…

材料科学 · 物理学 2018-02-28 Sobhit Singh , Irais Valencia-Jaime , Olivia Pavlic , Aldo H. Romero

The band structure of the novel low-temperature thermoelectric material, \CBT, is calculated and analyzed using the semi-classic transport equations. It is shown that to obtain a quantitative agreement with measured transport properties a…

材料科学 · 物理学 2007-05-23 Lars Lykke , Bo B. Iversen , Georg K. H. Madsen

In this article, we use hybrid density functional (HSE06) to study the crystal and electronic structures and optical properties of well known phase change memory material $\mathrm{Ge_{2}Sb_{2}Te_{5}}$. We calculate the structural…

材料科学 · 物理学 2015-06-05 T. Kaewmaraya , M. Ramzan , 1 H. Löfås , Rajeev Ahuja

We present a study of the thermodynamic and physical properties of Tl5Te3, BiTl9Te6 and SbTl9Te6 compounds by means of density functional theory based calculations. The optimized lattice constants of the compounds are in good agreement with…

材料科学 · 物理学 2011-11-04 Xiaoma Taoa , Philippe Jund , Romain Viennois , Jean-Claude Tédenac

We use density functional theory based first-principles method to investigate the bandstructure and phase stability in the laterally grown hexagonal C$_x$(BN)$_{1-x}$, two-dimensional Graphene and $h$-BN hybrid nanomaterials, which were…

介观与纳米尺度物理 · 物理学 2016-03-21 Ransell D'Souza , Sugata Mukherjee

The elastic, thermodynamic, electronic, and optical properties of recently discovered and potentially technologically important transition metal boride NbRuB, have been investigated using the density functional formalism. Both generalized…

材料科学 · 物理学 2017-03-21 F. Parvin , S. H. Naqib

The development of novel materials for vacuum electron sources in particle accelerators is an active field of research that can greatly benefit from the results of \textit{ab initio} calculations for the characterization of the electronic…

材料科学 · 物理学 2021-06-01 Holger-Dietrich Saßnick , Caterina Cocchi

As a second part of a previous paper, here the calculated electronic band structure of ideal Pt(100) and Pt(110) surfaces, studied using density functional theory and the empirical tight-binding method, is presented. A detailed discussion…

材料科学 · 物理学 2015-03-17 H. J. Herrera-Suarez , A. Rubio-Ponce , D. Olguin

The electronic band structure of cubic HfO2 is calculated using an it ab initio all-electron self--consistent linear augmented plane-wave method, within the framework of the local-density approximation and taking into account…

The structural, electronic, mechanical and thermodynamic properties of (Ti1-xMox)2AlC (0 < x < 0.20) were explored via density functional theory. The obtained lattice constants agree well with the experimental values. The electronic band…

材料科学 · 物理学 2020-05-19 M. A. Ali , S. H. Naqib

Ternary semiconductor CuYS2 is studied by using the first-principles methods in the density functional theory (DFT) framework. The structural, electronic, optical and elastic properties were calculated at the ambient and elevated…

材料科学 · 物理学 2013-09-13 M. G. Brik

The dynamical, dielectric and elastic properties of GeTe, a ferroelectric material in its low temperature rhombohedral phase, have been investigated using first-principles density functional theory. We report the electronic energy bands,…

材料科学 · 物理学 2009-01-06 R. Shaltaf , E. Durgun , J. -Y. Raty , Ph. Ghosez , X. Gonze

The electronic band structures of two-dimensional materials are significantly different from those of their bulk counterparts, due to quantum confinement and strong modifications of electronic screening. An accurate determination of…

介观与纳米尺度物理 · 物理学 2020-07-08 Tomáš Rauch , Miguel A. L. Marques , Silvana Botti

We have calculated electronic and optical properties of Si/BeSe$_{0.41}$Te$_{0.59}$ heterostructures by a semiempirical $sp^{3}s^{*}$ tight-binding method. Tight-binding parameters and band bowing of BeSe$_{0.41}$Te$_{0.59}$ are considered…

材料科学 · 物理学 2009-07-01 Titus Sandu W. P. Kirk

We present a computational study of the electronic properties of amorphous SiO2. The ionic configurations used are the ones generated by an earlier molecular dynamics simulations in which the system was cooled with different cooling rates…

无序系统与神经网络 · 物理学 2009-10-30 Thorsten Koslowski , Walter Kob , Katharina Vollmayr

We have studied the electronic band properties of 2H-SiC and 4H-SiC silicon carbide polytypes. The structures of the electronic bands and density of state (DOS) using ab initio Density Functional Theory (DFT) were calculated for the first…

材料科学 · 物理学 2021-06-28 A. V. Sinelnik , A. V. Semenov

A full-zone 30-band $k$$\cdot$$p$ model is developed as an efficient and reliable tool to compute electronic band structure in Ge$_{1-x}$Sn$_{x}$ alloy. The model was first used to reproduce the electronic band structures in Ge and…

应用物理 · 物理学 2019-11-07 Zhigang Song , Weijun Fan , Chuanseng Tan , Qijie Wang , Donguk Nam , Daohua Zhang , Greg Sun

The temperature-dependent electronic structures of heavy fermion compound CeB$_{6}$ are investigated thoroughly by means of the combination of density functional theory and single-site dynamical mean-field theory. The band structure,…

强关联电子 · 物理学 2017-05-03 Haiyan Lu , Li Huang

The brittleness or ductility of metals has long been attributed to their elastic constants, with high Poisson ratio, or equivalently high Pugh ratio, favoring greater ductility. Growing evidence links ductility with their electronic…

材料科学 · 物理学 2026-01-15 Kareem Abdelmaqsoud , John R. Kitchin , Michael Widom