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The structural and electronic properties of hypothetical Ru$_x$Fe$_{1-x}$Se and Ru$_x$Fe$_{1-x}$Te systems have been investigated from first principles within the density functional theory (DFT). Reasonable values of lattice parameters and…

Superconductivity · Physics 2014-12-15 M. J. Winiarski , M. Samsel-Czekała , A. Ciechan

The electronic structures of CeRhSn and CeRuSn are self-consistently calculated within density functional theory using the local spin density approximation for exchange and correlation. In agreement with experimental findings, the analyses…

Strongly Correlated Electrons · Physics 2008-01-26 S. F. Matar , J. F. Riecken , B. Chevalier , R. Poettgen , V. Eyert

First principles electronic structure calculations, based upon density functional theory within the generalized gradient approximation and ultra-soft Vanderbilt pseudopotentials, have been used to simulate a liquid alloy of iron and sulfur…

Condensed Matter · Physics 2009-10-31 Dario Alfe` , Michael J. Gillan

Recent trends of ab initio studies and progress in methodologies for electronic structure calculations of strongly correlated electron systems are discussed. The interest for developing efficient methods is motivated by recent discoveries…

Strongly Correlated Electrons · Physics 2010-12-06 Masatoshi Imada , Takashi Miyake

Using full-potential linear augmented plane wave method (FP-LAPW) and the density functional theory, we have carried out a systematic investigation of the electronic, magnetic, and cohesive properties of the chalcogenide CrTe in three…

Materials Science · Physics 2015-03-17 Y. Liu , S. K. Bose , J. Kudrnovský

Compounds based on Cr have been found to be among the first single-layer magnets. In addition, transition metal dichalcogenides are promising candidates to show long-range ferromagnetic order down to the two-dimensional limit. We use ab…

Materials Science · Physics 2025-12-16 Jan Phillips , Adolfo O. Fumega , S. Blanco-Canosa , Victor Pardo

The structural and electronic properties of Rutherfordium, the newest group IV B element, have been evaluated by first principles density functional theory in scalar relativistic formalism with and without spin-orbit coupling and compared…

Materials Science · Physics 2011-06-17 Jyoti Gyanchandani , S. K. Sikka

We systematically study the pristine and doped chromium arsenide (CrAs) in six different crystal structures to investigate the structural, magnetic, and optical properties for real applications by first-principles calculations. First, we…

Materials Science · Physics 2022-02-15 Na Kang , Wenhui Wan , Bu-Sheng Wang , Yanfeng Ge , Kai-Cheng Zhang , Yong Liu

We report ab initio density functional calculations of the structural and magnetic properties, and the electronic structure of CrAs. To simulate the observed pressure-driven experimental results, we perform our analysis for different…

Strongly Correlated Electrons · Physics 2017-10-30 Carmine Autieri , Canio Noce

Crystalline Co$_{x}$Cu$_{1-x}$ alloys show interesting magnetic behavior over the entire concentration regime. We here present a fully self- consistent first principles electronic structure studies of the electronic structure and magnetic…

Materials Science · Physics 2009-10-31 Subhradip Ghosh , Abhijit Mookerjee

We present results of an ab-initio study of the electronic structure of 140 rare earth compounds. Specifically we predict an electronic phase diagram of the entire range of rare earth monopnictides and monochalcogenides, composed of…

Strongly Correlated Electrons · Physics 2015-02-23 L. Petit , R. Tyer , Z. Szotek , W. M. Temmerman , A. Svane

The electronic structures of SmX (X=N, P, As, Sb, Bi, O, S, Se, Te, Po)compounds are calculated using the self-interaction corrected local-spin density approximation. The Sm ion is described with either five or six localized $f$-electrons…

Strongly Correlated Electrons · Physics 2009-11-10 A. Svane , V. Kanchana , G. Vaitheeswaran , G. Santi , W. M. Temmerman , Z. Szotek , P. Strange , L. Petit

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

Alkali metals display unexpected properties at high pressure, including emergence of low symmetry crystal structures, that appear to occur due to enhanced electronic correlations among the otherwise nearly-free conduction electrons. We…

Strongly Correlated Electrons · Physics 2015-06-23 G. Fabbris , J. Lim , L. S. I. Veiga , D. Haskel , J. S. Schilling

Much progress has been made over a long period, spanning more than a century, in understanding the atomic arrangement on various length scales of noncrystalline chalcogens and their transitions upon certain external stimuli. However, it is…

Disordered Systems and Neural Networks · Physics 2020-06-05 Spyros N. Yannopoulos

Recent high-throughput studies of copper-based semiconductors have identified potassium-based copper chalcogenides, KCuA (A $\in$ Te, Se, S) as optimal light absorbers in photovoltaic and photoelectrochemical devices. In this work, we…

Materials Science · Physics 2025-01-07 Arini Kar , K. R. Balasubramaniam , Dayadeep S. Monder

Structural stability and electronic properties of alkaline-earth metals (Ca, Sr, Ba) induced Si(111)-3x2 surfaces have been comprehensively studied by means of ab initio calculations. Adsorption energy and charge density difference…

Materials Science · Physics 2018-11-20 Jun-Shuai Chai , Zhen-Zhen Li , Lifang Xu , Jian-Tao Wang

Taking into considerations the wide compositional stretch of Heusler alloys, the first principles density functional theory based calculations are excellently suitable for estimating the multifaceted properties of alkali metal based LiVSb…

Materials Science · Physics 2024-07-03 Diwaker , Shyam L. Gupta , Anupam , Sumit Kumar , Aadil Fayaz , Ashwani Kumar

Layered thallium copper chalcogenides can form single, double, or triple layers of Cu-Ch separated by Tl sheets. Here we report on the preparation and properties of Tl-based materials of TlCu2Se2, TlCu4S3, TlCu4Se3 and TlCu6S4, and compare…

Superconductivity · Physics 2016-11-23 L. Li , D. S. Parker , C. R. dela Cruz , A. S. Sefat

A molecular solid C$_{50}$Cl$_{10}$ with possible crystalline structures, including the hexagonal-close-packed (hcp) phase, the face-centered cubic (fcc) phase, and a hexagonal monolayer, is predicted in terms of first-principles…

Materials Science · Physics 2009-11-11 Qing-Bo Yan , Qing-Rong Zheng , Gang Su
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