中文
相关论文

相关论文: Electronic structure of GdN, and the influence of …

200 篇论文

Density functional calculations are used to investigate the electronic structure of two-dimensional 5d tantalum carbides with honeycomb-like lattice structures. We focus on changes in the low-energy bands near the Fermi level with…

材料科学 · 物理学 2013-03-20 Nina J. Lane , Michel W. Barsoum , James M. Rondinelli

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 present a first-principles investigation of structural, electronic and optical properties of bulk crystalline Ag3N, AgN and AgN2 based on density functional theory (DFT) and many-body perturbation theory. The equation of state (EOS),…

材料科学 · 物理学 2015-09-15 Mohammed S. H. Suleiman , Daniel P. Joubert

We present a theoretical study of the structure-property correlation in gallium ferrite, based on the first principles calculations followed by a subsequent comparison with the experiments. Local spin density approximation (LSDA+U) of the…

We study the influence of electron-electron interactions on the electronic properties of disordered materials. In particular, we consider the insulating side of a metal-insulator transition where screening breaks down and the…

无序系统与神经网络 · 物理学 2009-10-30 Frank Epperlein , Michael Schreiber , Thomas Vojta

The structural and electronic properties of cubic GaN are studied within the local density approximation by the full-potential linear muffin-tin orbitals method. The Ga $3d$ electrons are treated as band states, and no shape approximation…

凝聚态物理 · 物理学 2009-10-22 Vincenzo Fiorentini , Michael Methfessel , Matthias Scheffler

We show that scanning gate microscopy can be used for probing electron-electron interactions inside a nanostructure. We assume a simple model made of two non-interacting strips attached to an interacting nanosystem. In one of the strips,…

介观与纳米尺度物理 · 物理学 2008-10-07 Axel Freyn , Ioannis Kleftogiannis , Jean-Louis Pichard

Grain boundaries play a major role for electron transport in graphene sheets grown by chemical vapor deposition. Here we investigate the electronic structure and transport properties of idealized graphene grain boundaries (GBs) in…

介观与纳米尺度物理 · 物理学 2024-03-19 Aleksander Bach Lorentzen , Fei Gao , Peter Bøggild , Antti-Pekka Jauho , Mads Brandbyge

We have carried out detailed high resolution ARPES measurements and band structure calculations to study the electronic structure of CaMnSb$_{2}$. The observed Fermi surface mainly consists of one hole pocket around ${\Gamma}$ point and one…

The electronic structure of quasi-one-dimensional superconductor K$_2$Cr$_3$As$_3$ is studied through systematic first-principles calculations. The ground state of K$_2$Cr$_3$As$_3$ is paramagnetic but very close to a ferromagnetic…

超导电性 · 物理学 2015-11-03 Hao Jiang , Guanghan Cao , Chao Cao

We present results of all-electron electronic structure calculations for the recently discovered d electron heavy fermion compound LiV_2O_4. The augmented spherical wave calculations are based on density functional theory within the local…

强关联电子 · 物理学 2009-10-31 V. Eyert , K. -H. Hoeck , S. Horn , A. Loidl , P. S. Riseborough

It is difficult to intuit how electronic structure features$-$such as band gap magnitude, location of band extrema, effective masses, etc.$-$arise from the underlying crystal chemistry of a material. Here we present a strategy to distill…

材料科学 · 物理学 2024-12-25 Emily Oliphant , Veda Mantena , Madison Brod , G. Jeffrey Snyder , Wenhao Sun

In the series R2PdSi3, Nd2PdSi3 is an anomalous compound in the sense that it exhibits ferromagnetic order unlike other members in this family. The magnetic ordering temperature is also unusually high compared to the expected value for a…

This study presents a refined approach to computing the electronic structure of indium antimonide (InSb) using advanced \textit{ab initio} techniques with the In and Sb $4d^{10}$ semicore electrons included in the valence states. These…

材料科学 · 物理学 2025-08-04 Ritwik Das , Anne-Sophie Grimault-Jacquin , Frédéric Aniel

In 1962, Overhauser showed that within Hartree-Fock (HF) the electron gas is unstable to a spin density wave (SDW) instability. Determining the true HF ground state has remained a challenge. Using numerical calculations for finite systems…

强关联电子 · 物理学 2008-06-13 Shiwei Zhang , D. M. Ceperley

The electronic structure of LaOFeAs, a parent compound of iron-arsenic superconductors, is studied by angleresolved photoemission spectroscopy. By examining its dependence on photon energy, polarization, sodium dosing and the counting of…

The electronic structure and the anisotropy of the Al - N {\pi} and {\sigma} chemical bonding of wurtzite AlN has been investigated by bulk-sensitive total fluorescence yield absorption and soft x-ray emission spectroscopies. The measured N…

材料科学 · 物理学 2011-12-30 M. Magnuson , M. Mattesini , C. Höglund , J. Birch , L. Hultman

We investigate the electronic structure of the c(4 x 2) reconstructed Ge(001) surface using band structure calculations based on density functional theory and the generalized gradient approximation. In particular, we take into account the…

材料科学 · 物理学 2009-11-13 Udo Schwingenschloegl , Cosima Schuster

We show the three-dimensional electronic structure of the Kondo lattice CeIn3 using soft x-ray angle resolved photoemission spectroscopy in the paramagnetic state. For the first time, we have directly observed the three-dimensional topology…

Using density functional theory calculations, we establish that the half-metallicity of bulk Ba2FeReO6 survives down to 1 nm thickness in BaTiO3/Ba2FeReO6/BaTiO3 heterostructures grown along the (001) and (111) directions. The confinement…

材料科学 · 物理学 2015-10-28 Santu Baidya , Umesh V. Waghmare , Arun Paramekanti , Tanusri Saha-Dasgupta