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相关论文: Electronic and Lattice Dynamical Properties of Ti2…

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In this study, we looked into a number of physical properties of alkali-bismuth compounds KBi$_2$ and RbBi$_2$ in the cubic Laves phase using the density functional theory (DFT). The structural, elastic, anisotropy indices, hardness,…

材料科学 · 物理学 2023-09-18 Jahid Hassan , M. A. Masum , S. H. Naqib

Understanding electronic properties of sub-stoichiometric phases of titanium oxide such as Magn\'eli phase Ti4O7 is crucial in designing and modeling resistive switching devices. Here we present our study on Magn\'eli phase Ti4O7 together…

材料科学 · 物理学 2015-06-22 Xiaoliang Zhong , Ivan Rungger , Peter Zapol , Olle Heinonen

Multicomponent nitrides are a hot research topic in the search of hard coatings. The effect of substitutions on the phase stabilities, magnetic, and elastic properties of $Al_{1-x-y}Cr_{x}Ti_{y}N$ $(0\leq x,y\leq1)$ was studied using first…

The physical characteristics of the novel chalcogenide MAX phase Hf2SeC have been investigated using the DFT method. The obtained lattice constant and elastic constants (Cij) are compared with previous results to check the consistency of…

材料科学 · 物理学 2022-02-08 M. A. Ali , Muhammad Waqas Qureshi

The phonon density-of-states of transition metal diborides TMB2 with TM = Ti, V, Ta, Nb and Y has been measured using the technique of inelastic neutron scattering. The experimental data are compared with ab initio density functional…

超导电性 · 物理学 2009-11-10 R. Heid , B. Renker , H. Schober , P. Adelmann , D. Ernst , K. -P. Bohnen

tructural transformation, pressure dependent elasticity behaviors, phonon, and thermodynamic properties of the equiatomic TiZr alloy are investigated by using first-principles density-functional theory. Our calculated lattice parameters and…

材料科学 · 物理学 2011-12-06 Bao-Tian Wang , Wei-Dong Li , Ping Zhang

The alloys with 8/18/24 valence electron count (VEC) are promising candidates for efficient energy conversion and refrigeration applications at low as well as high temperatures. The full potential linearized augmented plane wave method as…

材料科学 · 物理学 2022-05-17 Mukesh K. Choudhary , H. Fjellvåg , P. Ravindran

SnTaS2 is a recently discovered layered semimetal exhibiting type-II low transition temperature superconductivity. Except some superconductivity related parameters, most of the physical properties, namely, elastic, mechanical, bonding,…

材料科学 · 物理学 2022-07-13 M. I. Naher , M. Mahamudujjaman , A. Tasnim , R. S. Islam , S. H. Naqib

The electronic and phonon transport properties of quaternary tetradymite BiSbSeTe2 are investigated using first-principles approach and Boltzmann transport theory. Unlike the binary counterpart Bi2Te3, we obtain a pair of Rashba splitting…

材料科学 · 物理学 2018-08-01 Z. Z. Zhou , H. J. Liu , D. D. Fan , B. Y. Zhao , C. Y. Sheng , G. H. Cao , S. Huang

The electronic structure, optical and x-ray absorption spectra, angle dependence of the cyclotron masses and extremal cross sections of the Fermi surface, phonon spectra, electron-phonon Eliashberg and transport spectral functions,…

超导电性 · 物理学 2015-06-15 S. M. Sichkar , V. N. Antonov , V. P. Antropov

Lithium metasilicate (Li2SiO3) has attracted considerable interest as a promising electrolyte material for potential use in lithium batteries. However, its electronic properties are still not thoroughly understood. In this work, density…

We have carried out a detailed study of the chemical bonding for two room-temperature stable platinum silicide phases, tetragonal alpha-Pt_2Si and orthorhombic PtSi. An analysis of the valence electronic charge density reveals surprising…

材料科学 · 物理学 2009-11-07 J. E. Klepeis , O. Beckstein , O. Pankratov , G. L. W. Hart

This research work introduces the DFT through FP-LAPW+lo technique in WIEN2k software to obtain information about structural, thermoelectric, and optoelectronic characteristics of CaZnC and CaZnSi materials. The structural optimization was…

材料科学 · 物理学 2025-12-29 P. K. Kamlesh , U. K. Gupta , S. Verma , M. Rani , Y. Toual , A. S. Verma

MAB phases have appealing physical features that make them appropriate for a wide range of applications. Motivated by this, we present density functional theory (DFT) calculations of the structural, elastic, bonding, electronic band…

材料科学 · 物理学 2025-05-05 Jahid Hassan , M. A. Masum , Ruman Ali , Md. Enamul Haque , S. H. Naqib

Beta-PtO2 is a useful transition metal dioxide, but its fundamental thermodynamic and elastic properties remain unexplored. Using first-principles calculations, we systematically studied the structure, phonon, thermodynamic and elastic…

材料科学 · 物理学 2019-05-10 Quan Chen , Wei Li , Yong Yang

The structural, electronic, optical and vibrational properties of LiN$_3$ under high pressure have been studied using plane wave pseudopotentials within the generalized gradient approximation for the exchange and correlation functional. The…

材料科学 · 物理学 2013-11-07 K. Ramesh Babu , Ch. Bheema Lingam , Surya P. Tewari , G. Vaitheeswaran

The structural, electronic, elastic and optical properties of tetragonal (P4mm) phase of Pb0.5Sn0.5TiO3 (PSTO) and Pb0.5Sn0.5Ti0.5(Zr0.5)O3 (PSTZO) are examined by first-principles calculations based on the density functional theory (DFT)…

材料科学 · 物理学 2021-03-30 S. G. Kuma , M. M. Woldemariam

Silicene, a two-dimensional (2D) allotrope of silicon, has attracted significant interest for its electronic and mechanical properties, alongside its compatibility with various substrates. In this study, we investigate the structural and…

材料科学 · 物理学 2025-05-14 Carlos P. Herrero , Rafael Ramirez

In this work, we have explored via first principles study of mechanical properties including Vickers hardness and mechanical anisotropy, electronic charge density distribution, Fermi surface, thermodynamic and optical properties of the…

材料科学 · 物理学 2020-09-15 M. A. Ali , M. M. Hossain , A. K. M. A. Islam , S. H. Naqib

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