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We report calculations of the electronic structure of CaB$_6$ using the weighted density approximation (WDA) to density functional theory. We find a semiconducting band structure with a sizable gap, in contrast to local density…

Strongly Correlated Electrons · Physics 2009-11-10 Z. Wu , D. J. Singh , R. E. Cohen

The LnSbTe (Ln = Lanthanides) family, like isostructural ZrSiS type compounds, has emerged as a fertile playground for exploring the interaction of electronic correlations and magnetic ordering with the nodal line band topology. Here, we…

In this work we present the electronic band structure for (001)--CdTe interfaces with some other II--VI zinc blende semiconductors. We assume ideal interfaces. We use tight binding Hamiltonians with an orthogonal basis ($s p^3 s^*$). We…

Condensed Matter · Physics 2007-05-23 D. Olguin , R. Baquero

We measured the electronic local density of states (LDOS) of graphite surfaces near monoatomic step edges, which consist of either the zigzag or armchair edge, with the scanning tunneling microscopy (STM) and spectroscopy (STS) techniques.…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Y. Niimi , T. Matsui , H. Kambara , K. Tagami , M. Tsukada , Hiroshi Fukuyama

Iridates are of considerable current interest because of the strong spin-orbit coupling that leads to a variety of new phenomena. Using density-functional studies, we predict the formation of a spin-orbital entangled two-dimensional…

Materials Science · Physics 2019-09-04 Churna Bhandari , S. Satpathy

We have systematically investigated the effect of oxidation on the structural and electronic properties of graphene based on first-principles calculations. Energetically favorable atomic configurations and building blocks are identified,…

Mesoscale and Nanoscale Physics · Physics 2009-08-24 Jia-An Yan , Lede Xian , M. Y. Chou

We compare the classification of the electron bands in graphene, obtained by group theory algebra in the framework of tight-binding model (TBM), with that calculated in the density-functional theory (DFT) framework. Identification in the…

Mesoscale and Nanoscale Physics · Physics 2014-05-01 E. Kogan , V. U. Nazarov , V. M. Silkin , M. Kaveh

Vertical integration of two-dimensional materials has recently emerged as an exciting method for the design of novel electronic and optoelectronic devices. Using density functional theory, we investigatethe structural and electronic…

Materials Science · Physics 2015-06-25 Yongqing Cai , Gang Zhang , Yong-Wei Zhang

The multiband nature of iron-pnictide superconductors is one of the keys to the understanding of their intriguing behavior. The electronic and magnetic properties heavily rely on the multiband interactions between different electron and…

Superconductivity · Physics 2015-12-02 S. Kong , D. Y. Liu , S. T. Cui , S. L. Ju , A. F. Wang , X. G. Luo , L. J. Zou , X. H. Chen , G. B. Zhang , Z. Sun

This letter presents our findings on the recursive band gap engineering of chiral fermions in bilayer graphene doubly aligned with hBN. By utilizing two interfering moir\'{e} potentials, we generate a supermoir\'{e} pattern which…

The electronic properties of a material depend on the spatial freedom of the electron wavefunction. A well-known example is graphite, which is a conventional gapless semiconductor, while a single layer of it, graphene, exhibits extremely…

Mesoscale and Nanoscale Physics · Physics 2026-01-28 Mohammadamir Bazrafshan , Thomas. D. Kühne

Graphene antidot lattices constitute a novel class of nano-engineered graphene devices with controllable electronic and optical properties. An antidot lattice consists of a periodic array of holes which causes a band gap to open up around…

The electronic properties of hydrogenated graphenes are investigated with the first-principles calculations. Geometric structures, energy bands, charge distributions, and density of states (DOS) strongly depend on the different…

Materials Science · Physics 2015-10-09 Hao-Chun Huang , Shih-Yang Lin , Chung-Lin Wu , Ming-Fa Lin

The quasiparticle band structures of four polytypes 3C, 6H, 4H, and 2H of GaP, GaAs, GaSb, InP, InAs, and InSb are computed with high accuracy including spin-orbit interaction applying a recently developed approximate calculation scheme,…

Materials Science · Physics 2015-06-05 Abderrezak Belabbes , Christian Panse , Jürgen Furthmüller , Friedhelm Bechstedt

Previously reported formulation for electrons on curved periodic surfaces is used to analyze the band structure of an electron bound on the gyroid surface (the only triply-periodic minimal surface that has screw axes). We find that an…

Other Condensed Matter · Physics 2009-11-10 M. Koshino , H. Aoki

We have investigated the low-energy electronic structure of the heavy fermion superconductor CeCoIn5 by angle-resolved photoemission and band structure calculations. We measured the Fermi surface and energy distribution maps along the…

First principle calculations were performed to study the ground state electronic properties of Barium titanate within the density functional theory (DFT). In our DFT computations, we used Vosko-Wilk-Nusair correlation energy functional and…

Materials Science · Physics 2007-05-23 Hong-Jian Feng , Fa-Min Liu

We investigate the electronic transport properties of copper-graphene composites using a density-functional framework. Conduction in composites by varying the interface distance of a copper/graphene/copper (Cu/G/Cu) interface models was…

Materials Science · Physics 2023-02-01 K. N. Subedi , K. Nepal , C. Ugwumadu , K. Kappagantula , D. A. Drabold

Based on First-principles calculation, we have investigated electronic structure of a ZrCuSiAs structured superconductor LaNiPO. The density of states, band structures and Fermi surfaces have been given in detail. Our results indicate that…

Superconductivity · Physics 2008-06-14 Wei-Bing Zhang , Xiao-Bing Xiao , Wei-Yang Yu , Na Wang , Bi-Yu Tang

Motivated by the recent discovery of superconductivity on the heterointerface $LaAlO_{3}/SrTiO_{3}$, we theoretically investigate its local electronic structures near an impurity considering the influence of Rashba-type spin-orbit…

Superconductivity · Physics 2015-05-18 Bin Liu , Xiao Hu