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We observe superconductivity below a critical temperature TC = 1.8 K in single-crystal Ir3Te8, which also exhibits normal-state diamagnetism and a linear temperature dependence of electrical resistivity for a wide temperature interval, 20 K…

Several IV-VI semiconductor compounds made of heavy atoms, such as Pb$_{1-x}$Sn$_{x}$Te, may undergo band-inversion at the $L$ point of the Brillouin zone upon variation of their chemical composition. This inversion gives rise to…

Mesoscale and Nanoscale Physics · Physics 2018-05-28 A. Diaz-Fernandez , N. del Valle , F. Dominguez-Adame

Since the discovery of graphene, layered materials have attracted extensive interests owing to their unique electronic and optical characteristics. Among them, Dirac semimetal, one of the most appealing categories, has been a long-sought…

Intermetallic R$_3$T$_4$X$_{13}$ series consists of cage like structure and have been in focus due to their unconventional electronic ground states. In this work, we report the normal and superconducting state properties of a high quality…

Superconductivity · Physics 2015-11-23 Om Prakash , A. Thamizhavel , S. Ramakrishnan

We have investigated the band structure at the $\Gamma$ point of the three-dimensional (3D) topological insulator Bi$_2$Se$_3$ using magneto-spectroscopy over a wide range of energies ($0.55-2.2$\,eV) and in ultrahigh magnetic fields up to…

Mesoscale and Nanoscale Physics · Physics 2017-09-27 A. Miyata , Z. Yang , A. Surrente , O. Drachenko , D. K. Maude , O. Portugall , L. B. Duffy , T. Hesjedal , P. Plochocka , R. J. Nicholas

Fe$_3$GaTe$_2$, a recently discovered van der Waals ferromagnet, demonstrates intrinsic ferromagnetism above room temperature, necessitating a comprehensive investigation of the microscopic origins of its high Curie temperature…

The structural and electronic properties of germanene coated Ge$_2$Pt clusters have been determined by scanning tunneling microscopy and spectroscopy at room temperature. The interior of the germanene sheet exhibits a buckled honeycomb…

Materials Science · Physics 2017-06-05 L. Zhang , P. Bampoulis , A. van Houselt , H. J. W. Zandvliet

Materials with tunable topological features, simple crystal structure and flexible synthesis, are in extraordinary demand towards technological exploitation of unique properties of topological nodal points. The controlled design of the…

Materials Science · Physics 2020-10-14 Ali Ebrahimian , Reza Asgari , Mehrdad Dadsetani

Using the density functional theory combined with dynamical mean-field theory, we have performed systematic study of the electronic structure and its band topology properties of Ce$_3$Pt$_3$Bi$_4$ and Ce$_3$Pd$_3$Bi$_4$. At high…

Strongly Correlated Electrons · Physics 2020-04-29 Chao Cao , Guo-Xiang Zhi , Jian-Xin Zhu

We have investigated the electronic structure of Ba4Ir3O10 within the density-functional theory (DFT) using the generalized gradient approximation while considering strong Coulomb correlations (GGA+U) in the framework of the fully…

Strongly Correlated Electrons · Physics 2026-02-18 D. A. Kukusta , L. V. Bekenov , V. N. Antonov

Sub-oxides with the anti-perovskite structure constitute a large part of the interstitial stabilized compounds with novel chemical and physical properties, especially in the systems containing rare earth elements and/or early transition…

Materials Science · Physics 2022-01-24 Hanshang Jin , Jackson Badger , Peter Klavins , Jing-Tai Zhao , Valentin Taufour

We study the electronic structures and dielectric functions of the simple hydrides LiH, NaH, MgH2 and AlH3, and the complex hydrides Li3AlH6, Na3AlH6, LiAlH4, NaAlH4 and Mg(AlH4)2, using first principles density functional theory and GW…

Materials Science · Physics 2007-05-23 M. J. van Setten , V. A. Popa , G. A. de Wijs , G. Brocks

In the present work, we investigated the electronic and elastic properties in equilibrium and under strain of the type-II Dirac semimetal NiTe$_2$ using density functional theory (DFT). Our results demonstrate the tunability of Dirac nodes'…

The AV3Sb5 (A = K, Rb, Cs) kagome materials host an interplay of emergent phenomena including superconductivity, charge density wave states, and non-trivial electronic structure topology. The band structures of these materials exhibit a…

Materials Science · Physics 2024-07-15 Aurland K. Watkins , Dirk Johrendt , Vojtech Vlcek , Stephen D. Wilson , Ram Seshadri

Structural, elastic, electronic properties and the features of inter-atomic bonding in hypothetical Ir-based carbides-antiperovskites Ir3MC (M=Ti, Zr, Nb and Ta), as predicted from first-principles calculations, have been investigated for a…

Materials Science · Physics 2019-04-18 Slava Bannikov , Igor. R. Shein , Dmitry V. Suetin

The extraordinary electronic properties of Dirac materials, the two-dimensional partners of Weyl semimetals, arise from the linear crossings in their band structure. When the dispersion around the Dirac points is tilted, the emergence of…

Mesoscale and Nanoscale Physics · Physics 2019-07-31 M. Milićević , G. Montambaux , T. Ozawa , I. Sagnes , A. Lemaître , L. Le Gratiet , A. Harouri , J. Bloch , A. Amo

Although not an intrinsic superconductor, it has been long--known that, when intercalated with certain dopants, graphite is capable of exhibiting superconductivity. Of the family of graphite--based materials which are known to superconduct,…

Superconductivity · Physics 2016-08-16 Gabor Csányi , P. B. Littlewood , A. H. Nevidomskyy , Chris J. Pickard , B. D. Simons

Three dimensional (3D) topological Dirac materials are under intensive study recently. The layered compound ZrTe$_5$ has been suggested to be one of them by transport and ARPES experiments. Here, we perform infrared reflectivity measurement…

Materials Science · Physics 2015-08-12 R. Y. Chen , S. J. Zhang , J. A. Schneeloch , C. Zhang , Q. Li , G. D. Gu , N. L. Wang

Layered indium selenides ($In_{2}Se_{3}$) have recently been discovered to host robust out-of-plane and in-plane ferroelectricity in the $\alpha$ and $\beta$' phases, respectively. In this work, we utilise angle-resolved photoelectron…

In this study, we investigate the electronic, optical, thermoelectric, and thermodynamic properties of Ca(InP)2 through comprehensive theoretical calculations Ca(InP)2 is a compound with promising applications in materials science and…

Materials Science · Physics 2023-12-05 S. Dahri , A. Jabar , L. Bahmad , L. B. Drissi , R. Ahl Laamara