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相关论文: Superconducting MAX phases Nb2AC (A = S, Sn): An a…

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The structural, elastic, electronic, thermal and optical properties of superconducting MAX phases Ti2InX (X = C, N) are investigated by density functional theory (DFT). The results obtained from the least studied nitride phase are discussed…

超导电性 · 物理学 2012-07-25 M. Roknuzzaman , A. K. M. A. Islam

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

First principles pseudopotential calculations have been performed for the first time to investigate the phonon dispersion, thermodynamic and optical properties including charge density, Fermi surface, Mulliken population analysis,…

材料科学 · 物理学 2018-04-04 A. Chowdhury , M. A. Ali , M. M. Hossain , M. M. Uddin , S. H. Naqib , A. K. M. A. Islam

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

BaPd2As2 belongs to 122 pnictide group, famous for exhibiting superconductivity at high temperatures and other electronic correlations. Unlike the 122 iron arsenides, BaPd2As2 exhibits superconductivity at low temperature when realized in…

超导电性 · 物理学 2018-10-31 F. Parvin , S. H. Naqib

We have investigated the pressure-induced phase transition and superconducting properties of niobium disulfide (NbS$_2$) based on the density functional theory. The structures of NbS$_2$ at pressures from 0 to 200 GPa were predicted using…

超导电性 · 物理学 2014-10-31 Zhong-Li Liu , Ling-Cang Cai , Xiu-Lu Zhang

Ab intio calculations were done to investigate the structural, elastic, electronic and optical properties of the Cd-containing theoretically predicted MAX phase, Ti2CdN, in comparison with the isostructural and already synthesized phase,…

材料科学 · 物理学 2015-11-30 M Roknuzzaman , M A Hadi , M J Abedin , M T Nasir , A K M A Islam , M S Ali , K Ostrikov , S H Naqib

In this work we explore the phase diagram of the binary Nb-S system from ambient pressures up to 250 GPa using $ab$ $initio$ evolutionary crystal structure prediction. We find several new stable compositions and phases, especially in the…

材料科学 · 物理学 2021-01-13 Roman Lucrezi , Christoph Heil

We perform a systematic \textit{ab initio} density functional study of the superconductivity, electronic and phononic band structures, electron-phonon coupling and elastic constants of all four possible structures of niobium nitride…

超导电性 · 物理学 2023-08-15 K. Ramesh Babu , Guang-Yu Guo

Based on first-principles calculations, we demonstrate that 1H/2H-phase transition metal dichalcogenides MX2 (M=Nb,Ta; X=S,Se,Te) are unconventional metals, which have an empty-site band of $A_1'@1e$ elementary band representation at the…

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

212 MAX phase borides are new additions to the MAX phase family with enhanced thermo-mechanical properties. In this article, first-principles calculations have been carried out to explore the mechanical properties, Vickers hardness, elastic…

材料科学 · 物理学 2020-10-12 M. A. Ali , M. M. Hossain , M. M. Uddin , A. K. M. A. Islam , D. Jana , S. H. Naqib

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 exploration of the superconductivity in two-dimensional materials has garnered significant attention due to their promising low-power applications and fundamental scientific interest. Here, we report some novel stable non-van der Waals…

超导电性 · 物理学 2025-05-22 Si-Yi Xiong , Peng Jiang , Yiming Wang , Yan-Ling Li

In this paper, we investigate the electronic band structure, lattice dynamics and electron-phonon interaction in $\delta$-NbN, $\varepsilon$-NbN and WC-NbN by performing systematic ab initio calculations based on DFT-GGA. The calculated…

超导电性 · 物理学 2019-03-27 K. Ramesh Babu , Guang-Yu Guo

Using \textit{ab initio} calculation, we investigate systematically the structural and electronic properties of Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$ ($x$ = 0, 0.25, 0.50). Here, projector augmented wave approach (PAW) implemented in the Vienna…

材料科学 · 物理学 2013-04-08 Soumyadipta Pal

Quantum materials with non-trivial band topology and bulk superconductivity are considered superior materials to realize topological superconductivity. In this regard, we report detailed Density Functional Theory (DFT) calculations and Z2…

超导电性 · 物理学 2021-08-24 N. K. Karn , M. M. Sharma , Prince Sharma , Ganesh Gurjar , S. Patnaik , V. P. S. Awana

Nb2SnC is a member of the large family of lamellar materials that crystallize in the hexagonal structure with space group P63/mmc which are isomorphs with Cr2AlC, also named H-phase. In spite of the great number of compounds which belong to…

We report the discovery of superconductivity in binary alloy Sn$_{1-x}$Sb$_{x}$ with $x$ in the range of 0.43 to 0.6, which possesses a modulated rhombohedral structure due to the incommensurate ordering of Sn and Sb layers along the…

We report comprehensive study of physical properties of the binary superconductor compound SnAs. The electronic band structure of SnAs was investigated using both angle-resolved photoemission spectroscopy (ARPES) in a wide binding energy…

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