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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…

Materials Science · Physics 2015-10-28 Santu Baidya , Umesh V. Waghmare , Arun Paramekanti , Tanusri Saha-Dasgupta

Rare-earth tritellurides (RTe3) are popular for their charge density wave (CDW) phase, magnetotransport properties and pressure induced superconducting state among other features. In this literature, Density functional theory has been…

Materials Science · Physics 2024-09-12 Tanbin Chowdhury , B. Rahman Rano , Ishtiaque M. Syed , S. H. Naqib

In this paper, density functional theory calculations are used to explore the electronic and atomic reconstruction at interfaces between III-III/I-V oxides. In particular, at these interfaces, two dimensional electron gases (2DEGs) with…

Materials Science · Physics 2012-06-06 Valentino R. Cooper

The band structure of the cubic spinel compound LiV_2O_4, which has been reported recently to show heavy Fermion behavior, has been calculated within the local-density approximation using a full-potential version of the linear…

Strongly Correlated Electrons · Physics 2009-10-31 J. Matsuno , A. Fujimori , L. F. Mattheiss

We have found that CeCd$_{3}$P$_{3}$ crystallizes into a hexagonal ScAl$_{3}$C$_{3}$-type structure. The optical, transport and magnetic properties of CeCd$_{3}$P$_{3}$ were investigated by measuring the diffuse reflectance, electrical…

Strongly Correlated Electrons · Physics 2016-04-15 Shohei Higuchi , Yuki Noshima , Naoki Shirakawa , Masami Tsubota , Jiro Kitagawa

A first-principles study has been carried out to evaluate the electronic and optical properties of rutile Ti1-xCdxO2 as a possible photocatalytic material. It was found that Cd incorporation lead to the enhancement of p states in the top of…

Materials Science · Physics 2012-10-03 X. D. Zhang , M. L. Guo , C. L. Liu , W. X. Li , X. F. Hong

We investigate the three-dimensional electronic structure of the seminal charge-density-wave (CDW) material 2H-NbSe$_2$ by soft x-ray angle-resolved photoelectron spectroscopy and density-functional theory. Our results reveal the pronounced…

Superconductivity · Physics 2018-07-24 F. Weber , R. Hott , R. Heid , L. L. Lev , M. Caputo , T. Schmitt , V. N. Strocov

An intact CuO$_2$ plane is widely believed to be a prerequisite for the high-$T_c$ superconductivity in cuprate superconductors. However, an exception may exist in the superconducting Ba$_2$CuO$_{3+\delta}$ materials where CuO chains play a…

Superconductivity · Physics 2019-05-01 Kai Liu , Zhong-Yi Lu , Tao Xiang

We report the calculated fundamental band gaps of \emph{wurtzite} ternary alloys Zn$_{1-x}$M$_x$O (M=Mg, Cd) and the band offsets of the ZnO/Zn$_{1-x}$M$_x$O heterojunctions, these II-VI materials are important for electronics and…

Materials Science · Physics 2017-01-26 Haitao Yin , Junli Chen , Yin Wang , Jian Wang , Hong Guo

Based on first principles calculations, the electronic structure of CuTeO$_4$ is discussed in the context of superconducting cuprates. Despite some significant crystallographic differences, we find that CuTeO$_4$ is similar to these…

Superconductivity · Physics 2017-03-22 Antia S. Botana , Michael R. Norman

Chemical interaction and changes in local electronic structure of Cr, Fe, Co, Ni and Cu transition metals (TMs) upon formation of an $Al_{8}Co_{17}Cr_{17}Cu_{8}Fe_{17}Ni_{33}$ compositionally complex alloy (CCA) have been studied by X-ray…

In this paper we investigate the electronic and superconducting properties in nickelate compounds of NiO2 through Perturbative Density Functional Theory (P-DFT) and multi-band BCS theory. We consider three different cases of study (i) the…

Superconductivity · Physics 2021-12-16 Julian Faundez , C. A. Aguirre , S. G. Magalhães , J. Barba-Ortega

Electrides, with their excess electrons distributed in crystal cavities playing the role of anions, exhibit a variety of unique electronic and magnetic properties. In this work, we employ the first-principles crystal structure prediction to…

Materials Science · Physics 2019-03-06 Sheng-cai Zhu , Lei Wang , Jing-yu Qu , Jun-jie Wang , Timofey Frolov , Xing-Qiu Chen , Qiang Zhu

We present a comprehensive first-principles study of the electronic structure of 51 semiconducting monolayer transition metal dichalcogenides and -oxides in the 2H and 1T hexagonal phases. The quasiparticle (QP) band structures with…

Materials Science · Physics 2015-06-10 Filip Anselm Rasmussen , Kristian Sommer Thygesen

Electronic properties of materials are crucial to their ability to function in a wide range of applications, from electronics and energy production to structural materials and biomedicine. Computational methods are crucial in understanding…

Materials Science · Physics 2023-09-20 Mirza Akbar Ali

Recent electronic structure calculations for the prototypical lowdimensional cuprate compounds CaCuO2 ans SrCuO2 performed by Wu et. al. (J. Phys.: Condens. Matter v. 11 p.4637 (1999))are critically reconsidered, applying high precision…

Strongly Correlated Electrons · Physics 2009-10-31 H. Rosner , M. Divis , K. Koepernik , S. -L. Drechsler , H. Eschrig

Optical properties of ferromagnetic half-metallic full-Heusler Co$_{2}$FeGe alloy are investigated experimentally and theoretically. Co$_{2}$FeGe thin films were obtained by DC magnetron sputtering and show the saturation magnetization at…

Materials Science · Physics 2015-06-11 N. V. Uvarov , Y. V. Kudryavtsev , A. F. Kravets , A. Ya. Vovk , R. P. Borges , M. Godinho , V. Korenivski

We observe significant effects of structural distortion on electronic and optical properties of CdGa_2X_4 (X = S, Se, Te) defect chalcopyrite. The calculation is carried out within Density functional theory based tight binding linear muffin…

Materials Science · Physics 2015-12-09 Surabala Mishra , Biplab Ganguli

Heterostructuring provides different ways to manipulate the orbital degrees of freedom and to tailor orbital occupations in transition metal oxides. However, the reliable prediction of these modifications remains a challenge. Here, we…

Strongly Correlated Electrons · Physics 2022-04-27 P. Radhakrishnan , B. Geisler , K. Fürsich , D. Putzky , Y. Wang , G. Christiani , G. Logvenov , P. Wochner , P. A. van Aken , R. Pentcheva , E. Benckiser

In this work an overall electronic structure including the position and formation energies of various intrinsic defects are computed for anatase using Density Functional Theory aided by Hubbard correction (DFT+U). The intrinsic point…