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相关论文: Electronic Structures of MgB{$_2$} under Uniaxial …

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We report density functional theory calculations on the crystal structure, elastic, lattice dynamics and electronic properties of iso-structural layered monoclinic alkali azides, LiN3 and NaN3. The effect of van der Waals interactions on…

材料科学 · 物理学 2013-11-04 K. Ramesh Babu , G. Vaitheeswaran

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

The spatial distribution of the internal pressure of an electron fluid, which spontaneously arises at the formation of a molecule or a crystal, is linked to the main features of chemical bonding in molecular crystals. The local pressure is…

化学物理 · 物理学 2016-05-04 Vladimir G. Tsirelson , Adam I. Stash , Ilya V. Tokatly

We present results of ab-initio calculations of the electronic band structure, lattice dynamical properties, and elastic constants of LaOFeAs, the parent compound of the recently discovered superconducting iron-oxypnictide (LaO1-xFxFeAs).…

超导电性 · 物理学 2009-09-19 M. Aftabuzzaman , A. K. M. A. Islam , S. H. Naqib

The electronic states of isostructural single-component molecular conductors [M(tmdt)2] (M= Ni, Au, and Cu) are theoretically studied. By considering fragments of molecular orbitals as basis functions, we construct a multiorbital model…

强关联电子 · 物理学 2013-04-17 Hitoshi Seo , Shoji Ishibashi , Yuichi Otsuka , Hidetoshi Fukuyama , Kiyoyuki Terakura

Silicon carbide is widely used in electronics, ceramics, and renewable energy due to its exceptional hardness and resistance. In this study, we investigate the effects of hydrostatic and uniaxial pressure (both compressive and tensile) on…

Using ab initio method we have studied the structural, elastic, electronic, optical and thermodynamic properties of AlB2 and TaB2. We have used plane wave pseudopotential with generalised gradient approximation as implemented in CASTEP…

材料科学 · 物理学 2015-05-26 N. Jahan , M. A. Ali

Optical measurements under externally applied stresses allow us to study the materials' electronic structure by comparing the pressure evolution of optical peaks obtained from experiments and theoretical calculations. We examine the…

Magnetic fluids are colloidal suspensions of ferromagnetic particles covered with a surfactant layer, dispersed in a host liquid. The existence of cooperative phenomena in such magnetic colloidal systems, makes the determining of their…

材料科学 · 物理学 2007-05-23 D. Andru Vangheli , H. Covlescu , Gh. Ardelean , C. Stelia

The network connectivity in liquid water is revised in terms of electronic signatures of hydrogen bonds (HBs) instead of geometric criteria, in view of recent X-ray absorption studies. The analysis is based on ab initio molecular-dynamics…

其他凝聚态物理 · 物理学 2009-11-11 M. V. Fernandez-Serra , Emilio Artacho

First-principles calculations were performed to investigate electronic and elastic properties of the newly discovered 7.5K superconductor: layered Nb2InC. As a result, electronic bands, total and site-projected l- decomposed DOS at the…

超导电性 · 物理学 2010-04-08 I. R. Shein , A. L. Ivanovskii

We perform first-principles calculations to explore electronic, thermodynamic, and dielectric properties of two-dimensional (2D) layered, alkaline-earth hydroxides Ca(OH)2 and Mg(OH)2. We calculate the lattice parameters, exfoliation…

材料科学 · 物理学 2022-04-12 Mehrdad Rostami Osanloo , Kolade A. Oyekan , William G. Vandenberghe

We present detailed electronic structure calculations for CaFe2As2. We investigate in particular the `collapsed' tetragonal and orthorhombic regions of the temperature-pressure phase diagram and find properties that distinguish CaFe2As2…

强关联电子 · 物理学 2009-03-27 D. A. Tompsett , G. G. Lonzarich

This article reviews the static and dynamic properties of spontaneous superstructures formed by electrons. Representations of such electronic crystals are charge density waves and spin density waves in inorganic as well as organic low…

强关联电子 · 物理学 2013-07-04 Pierre Monceau

The checkerboard lattice has been proposed to host topological flat bands as a result of destructive interference among its various electronic hopping terms. However, it has proven challenging to realize experimentally due to the difficulty…

The electronic properties of devices based on two-dimensional materials are significantly influenced by interactions with substrate and electrode materials. Here, we use photoemission electron microscopy to investigate the real- and…

This work presents a systematic review of the feature-rich essential properties in graphene-related systems using the first-principles method. The geometric and electronic properties are greatly diversified by the number of layers, the…

化学物理 · 物理学 2017-02-14 Ngoc Thanh Thuy Tran , Shih-Yang Lin , Chiun-Yan Lin , Ming-Fa Lin

Marcasite compounds formed between $3d$ transition metals and antimony (TMSb$_2$) have been heavily studied due to their intriguing physical properties. For instance they can possess flat bands in their electronic structure, however due to…

强关联电子 · 物理学 2026-04-29 Carl Jonas Linnemann , Kim-Khuong Huynh , Davide Ceresoli , Martin Bremholm

The electronic structure of an isostructural series of molecular conductors, {\beta}'-X[Pd(dmit)_2]_2 is systematically studied by a first-principles method based on the density-functional theory. The calculated band structures are fitted…

强关联电子 · 物理学 2013-03-15 Takao Tsumuraya , Hitoshi Seo , Masahisa Tsuchiizu , Reizo Kato , Tsuyoshi Miyazaki

Herein, we investigate the structural, electronic and mechanical properties of zigzag graphene nanoribbons upon the presence of stress applying Density Functional Theory within the GGA-PBE approximation. The uniaxial stress is applied along…

材料科学 · 物理学 2015-05-13 Ricardo Faccio , Pablo A. Denis , Helena Pardo , Cecilia Goyenola , Alvaro W. Mombru