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Electronic properties of spin polarized antiferromagnetic ACrO3 (A = La, Y) are explored with Hubbard Model using Density Functional Theory (DFT). These two isostructural systems are investigated using the different Hubbard energy and…

Materials Science · Physics 2023-08-09 Jeel Swami , Ambesh Dixit , Brajesh Tiwari

Using a new form of density functional theory for the {\em ab initio} description of electronic systems in contact with a dielectric environment, we present the first detailed study of the impact of a solvent on the surface chemistry of…

Soft Condensed Matter · Physics 2020-07-14 S. Petrosyan , A. A. Rigos , T. A. Arias

This study investigates the photocatalytic nitrogen fixation on a cation-doped surface (Bi$_{x}$M$_{y}$)$_2$MoO$_6$ where (M = Fe, La, Yb) in both the orthorhombic and monoclinic configurations using a density functional theory (DFT)…

Materials Science · Physics 2018-12-13 Alhassan S. Yasin , Botong Liu , Nianqiang Wu , Terence Musho

We have investigated the structure of Co$_2$CO$_3$(OH)$_2$ using Density Functional Theory (DFT) simulations as well as Powder X-Ray Diffraction (PXRD) measurements on samples synthesized via deposition from aqueous solution. We consider…

The $N=Z=36$ nucleus $^{72}$Kr has been studied by inelastic scattering at intermediate energies. Two targets, $^{9}$Be and $^{197}$Au, were used to extract the nuclear deformation length, $\delta_\text{N}$, and the reduced $E2$ transition…

Complex light metal hydrides possess many properties which make them attractive as a storage medium for hydrogen, but typically, catalysts are required to lower the hydrogen desorption temperature and to facilitate hydrogen uptake in the…

Materials Science · Physics 2011-07-27 Ralph H. Scheicher , Sa Li , C. Moyses Araujo , Andreas Blomqvist , Rajeev Ahuja , Puru Jena

We report the structural, magnetic and electrical transport properties of Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ pyrochlore iridates. The chemical doping leads to order of magnitude enhancement of electrical conductivity. The introduction of Cr3+ at…

Materials Science · Physics 2019-07-24 Vinod Kumar Dwivedi , Soumik Mukhopadhyay

High-entropy oxides (HEOs) offer exceptional compositional flexibility and structural stability, making them promising materials for energy and catalytic applications. Here, we investigate Sr doping effects on B-site cation oxidation…

We report first-principles density functional theory studies of native defects in lithium borohydride (LiBH$_{4}$), a potential material for hydrogen storage. Based on our detailed analysis of the structure, energetics, and migration of…

Materials Science · Physics 2014-12-22 Khang Hoang , Chris G. Van de Walle

The structural environment of substitutional Cr3+ ion in a natural pyrope Mg3Al2Si3O12 has been investigated by Cr K-edge Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Absorption Near Edge Structure (XANES) coupled with…

Materials Science · Physics 2007-10-24 Amélie Juhin , Georges Calas , Delphine Cabaret , Laurence Galoisy , Jean-Louis Hazemann

The radicals HCO and CH$_3$ on carbon monoxide ice surfaces were simulated using density functional theory. Their binding energy on amorphous CO ice shows broad distributions, with approximative average values of 500 K for HCO and 200 K for…

Astrophysics of Galaxies · Physics 2019-04-16 Thanja Lamberts , Max N. Markmeyer , Florian J. Kolb , Johannes Kästner

In this work we have employed density-functional theory with hybrid functionals to investigate the atomic and electronic structure of bare and hydrogenated Co doped ZnO nanowires. We find that in the absence of passivation on the nanowire…

Materials Science · Physics 2018-08-09 A. L. Rosa , L. L. Tacca , Th. Frauenheim

Density Functional Theory calculations have been performed to obtain lattice parameters, elastic constants, and electronic properties of ideal pyrochlores with the composition A$_2$B$_2$O$_7$ (where A=La,Y and B=Ti,Sn,Hf, Zr). Some thermal…

Materials Science · Physics 2009-11-11 J. M. Pruneda , Emilio Artacho

Layered black arsenic (b-As) has recently emerged as a new anisotropic two-dimensional (2D) semiconducting material with applications in electronic devices. Understanding factors affecting the ambient stability of this material remains…

Materials Science · Physics 2022-07-07 Mayank Tanwar , Sagar Udyavara , Hwanhui Yun , Supriya Ghosh , K. Andre Mkhoyan , Matthew Neurock

BiVO3F is a promising material used in solar energy conversion systems. Here, we first report the calculated structural, electronic, and surface reaction properties using PBE and hybrid density functionals. We found it is a direct band gap…

Materials Science · Physics 2021-06-25 Taifeng Liu* , Tongling Liu , Yongqiang Zheng

Performing an analysis within density functional theory, we develop insight into the structural and electronic properties of the oxide heterostructure LaAlO3/SrTiO3. Electrostatic surface effects are decomposed from the internal lattice…

Materials Science · Physics 2015-05-13 U. Schwingenschloegl , C. Schuster

The physicochemical behavior of elements and compounds is heavily altered by high pressure. The occurrence of pressure-induced reactions and phase transitions can be revealed by crystal structure prediction approaches. In this work, we…

Materials Science · Physics 2016-03-09 Gabriele Saleh , Artem R. Oganov

The liquid crystalline 4-pentylphenyl-4'-decyloxythiobenzoate is investigated in various temperature programs for determination of crystallization kinetics and glassforming properties. The Avrami model, Augis-Bennett method and…

The optimal kinematic parameters for the formation of the most stabilized products in direct three-body recombination Cs+ + Br- + R ---> CsBr + R with R = Hg, Xe, Kr are determined by the deformed polyhedron method for the third body energy…

Chemical Physics · Physics 2013-08-06 Ekaterina V. Ermolova , Lev Yu. Rusin

The effect of external static charging on borophenes - 2D boron crystals - is investigated by using first principles calculations. The influence of the excess negative charge on the stability of the 2D structures is examined using a very…

Materials Science · Physics 2021-09-21 T. Tarkowski , J. A. Majewski , N. Gonzalez Szwacki
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