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Related papers: Electronic structure of the c(4 x 2) reconstructed…

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The electronic structure of the rational approximants 1/1 Cd6Yb and 1/1 Cd6Ca to the stable icosahedral CdYb and CdCa quasicrystals is studied by the full-potential linear augmented plane wave method. A comparison is made between several…

Other Condensed Matter · Physics 2009-11-10 E. S. Zijlstra , S. K. Bose , R. Tamura

We study the electronic structure of the Re(0001) surface by means of ab-initio techniques based on the Fully Relativistic (FR) Density Functional Theory (DFT) and the Projector Augmented-Wave (PAW) method. We identify the main surface…

Materials Science · Physics 2019-07-01 Andrea Urru , Andrea Dal Corso

The experimental control over the twist angle in twisted bilayer graphene has not been reported and its realistic structure is most likely incommensurate. In this paper, we develop a tight-binding virtual crystal approximation theory to…

Mesoscale and Nanoscale Physics · Physics 2015-01-27 D. Ghader , D. Szczȩśniak , A. Khater

In the last decade, computational studies of liquid water have mostly concentrated on ground state properties. However recent spectroscopic measurements have been used to infer the structure of water, and the interpretation of optical and…

Materials Science · Physics 2016-08-31 David Prendergast , Jeffrey C. Grossman , Giulia Galli

Cerium, in which the 4$f$ valence electrons live at the brink between localized and itinerant characters, exhibits varying crystal structures and therefore anomalous physical properties with respect to temperature and pressure.…

Strongly Correlated Electrons · Physics 2019-01-16 Li Huang , Haiyan Lu

Surface-induced symmetry breaking in quantum materials can stabilize exotic electronic phases distinct from those in the bulk, yet its momentum-space manifestations remain elusive due to domain-averaging effects. Here, using angle-resolved…

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

We use the Surface Green Function Matching (SGFM) method and a tight-binding hamiltonian to calculate the (100)-surface electronic band structure and local density of states of the series of Cu-based A^{I}B^{III}C2^{VI} chalcopyrites . We…

Materials Science · Physics 2007-05-23 H. Tototzintle-Huitle , R. Baquero

Here we report the evolution of bulk band structure and surface states in rare earth mono-bismuthides with partially filled f shell. Utilizing synchrotron-based photoemission spectroscopy, we determined the three-dimensional bulk band…

Mesoscale and Nanoscale Physics · Physics 2019-02-12 Peng Li , Zhongzheng Wu , Fan Wu , Chao Cao , Chunyu Guo , Yi Wu , Yi Liu , Zhe Sun , Cheng-Maw Cheng , Deng-Sung Lin , Frank Steglich , Huiqiu Yuan , Tai-Chang Chiang , Yang Liu

Epitaxial graphene, grown on SiC(0001) surface, has been widely studied both experimentally and theoretically. It was found that first epitaxial graphene layer in such structures is a buffer layer i.e. there are no characteristic Dirac…

Materials Science · Physics 2015-03-13 Jakub Soltys , Jacek Piechota , Michal Lopuszynski , Stanislaw Krukowski

Using the recently developed version of the GW method employing the one-site approximation and self-consistent quasiparticle basis set we calculated the electronic structure of 3d and 4d transition metals at experimental atomic volumes. The…

Strongly Correlated Electrons · Physics 2007-08-16 K. D. Belashchenko , V. P. Antropov , N. E. Zein

An experimental study of the electronic structure of copper intercalated titanium dichalcogenides in a wide range of copper concentrations (x = 0.05 - 0.6) using the x-rays photoemission spectroscopy, resonant photoemission and x-rays…

A heavy-fermion paramagnet UTe$_2$ has been a strong candidate for a spin-triplet superconductor. Experiments on UTe$_2$ under pressure have been vigorously conducted, and rich phase diagrams have been suggested. Multiple superconducting…

Strongly Correlated Electrons · Physics 2025-12-01 Makoto Shimizu , Youichi Yanase

We have performed a density functional study of fifteen different structural models of the Si(557)-Au surface reconstruction. Here we present a brief summary of the main structural trends obtained for the more favourable models, focusing…

Materials Science · Physics 2007-05-23 Daniel Sanchez-Portal , Richard M. Martin

GaN(0001) surfaces with Ga- and H-adsorbates are fundamental stages for epitaxial growth of semiconductor thin films. We explore stable surface structures with nanometer scale by the density-functional calculations combined with Bayesian…

Materials Science · Physics 2022-01-27 Akira Kusaba , Yoshihiro Kangawa , Tetsuji Kuboyama , Atsushi Oshiyama

The reconstruction on Ge(001) surface is locally and reversibly changed between c(4x2) and p(2x2) by controlling the bias voltage of a scanning tunneling microscope (STM) at 80K. It is c(4x2) with the sample bias voltage V_b =< -0.7V. This…

Materials Science · Physics 2009-11-10 Yasumasa Takagi , Yoshihide Yoshimoto , Kan Nakatsuji , Fumio Komori

Density functional calculations of the electronic structure of the complex hydride NaAlH4 and the reference systems NaH and AlH3 are reported. We find a substantially ionic electronic structure for NaAlH4, which emphasizes the importance of…

Materials Science · Physics 2009-11-10 A Aguayo , D. J. Singh

Here, our angle resolved photoemission spectroscopy experiment reveled that the surface band structure of the 1T-VSe2 host electronic states that was not predicted or probed before. Earlier claims to support charge density wave phase can be…

Materials Science · Physics 2023-04-19 Turgut Yilmaz , Boris Sinkovic , Elio Vescovo

We performed first-principles density functional theory (DFT) and GW calculations to investigate electronic structures of bulk and few-layer PdSe2. We obtained the quasiparticle band structure of bulk PdSe2, and the obtained energy gap…

Materials Science · Physics 2021-09-02 Han-gyu Kim , Hyoung Joon Choi

We investigated the nonequilibrium electronic structure of 2H-NbSe$_2$ by time- and angle-resolved photoemission spectroscopy. We find that the band structure is distinctively modulated by strong photo-excitation, as indicated by the…