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Absolute total electron-ion recombination rate coefficients of argonlike Sc3+(3s2 3p6) ions have been measured for relative energies between electrons and ions ranging from 0 to 45 eV. This energy range comprises all dielectronic…

We discuss properties of strongly correlated two-dimensional electron gas in semiconductor layers at low electron concentrations assuming that the electron liquid is close to crystalization. Analogy with the theory of 3He is emphasized.

Mesoscale and Nanoscale Physics · Physics 2009-10-31 B. Spivak

Many-electron systems confined to a quasi-1D geometry by a cylindrical distribution of positive charge have been investigated by density functional computations in the unrestricted local spin density approximation. Our investigations have…

Mesoscale and Nanoscale Physics · Physics 2010-08-27 R. Cortes-Huerto M. Paternostro P. Ballone

We examine the ionic migration of Li in LATP [$\text{Li}_{1+x} \text{Al}_x \text{Ti}_{2-x} {(\text{P} \text{O}_4)}_3$] solid electrolytes from an atomistic viewpoint by means of density functional theory calculations. We vary the Al content…

Materials Science · Physics 2021-08-20 Daniel Pfalzgraf , Daniel Mutter , Daniel F. Urban

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

We report computer based simulations of energetics, spectroscopy and electron-phonon interaction of americium using a novel spectral density functional method. This approach gives rise to a new concept of a many-body electronic structure…

Strongly Correlated Electrons · Physics 2009-11-11 Sergej Y. Savrasov , Kristjan Haule , Gabriel Kotliar

Based on density functional theory calculations, the structural and electronic properties of polythiophene in periodic and oligomer forms have been investigated. In particular, the effects of Li or Cl adsorption onto a monolayer and Li or…

Materials Science · Physics 2015-01-28 T. P. Kaloni , G. Schreckenbach , M. S. Freund

The introduction of gases like nitrogen or neon for cooling the edge region of magnetically confined fusion plasmas has triggered a renewed interest in state selective cross sections necessary for plasma diagnostics by means of charge…

The low-temperature electronic and magnetic properties of NH$_4$V$_2$O$_5$, an isoelectronic analog of the spin-ladder compound $\alpha'$-NaV$_2$O$_5$, are investigated using DFT+$U$ calculations. Two charge-ordering patterns - zigzag and…

Strongly Correlated Electrons · Physics 2025-08-20 Dm. M. Korotin

Recent dramatic changes in the optical properties of LaH_{2+x} and YH_{2+x} films discovered by Huiberts et al. suggest their electronic structure is described best by a local model. Electron correlation is important in H^- -centers and in…

Condensed Matter · Physics 2016-08-31 K. K. Ng , F. C. Zhang , V. I. Anisimov , T. M. Rice

The thermodynamical stability of ${\rm Al(BH_4)_3}$ has been investigated using first-principles calculations based on density functional theory. The heats of formation are obtained to be -132 and $-131 {\rm kJ/mol}$ without the zero-point…

Materials Science · Physics 2007-05-23 Kazutoshi Miwa , Nobuko Ohba , Yuko Nakamori , Shin-ichi Towata , Andreas Zuttel , Shin-ichi Orimo

We present a study of the electronic structure and magnetism of Co$_2$MnAl, CoMnVAl and their heterostructure. We employ a combination of density-functional theory and dynamical mean-field theory (DFT+DMFT). We find that Co$_2$MnAl is a…

Materials Science · Physics 2018-01-12 Igor Di Marco , Andreas Held , Samara Keshavarz , Yaroslav O. Kvashnin , Liviu Chioncel

We present an observational study about the impacts of the interactions in the electron density of \ion{H}{ii} regions located in 7 systems of interacting galaxies. The data consist of long-slit spectra in the range 4400-7300 A, obtained…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 A. C. Krabbe , D. A. Rosa , O. L. Dors , M. G. Pastoriza , C. Winge , G. F. Hagele , M. V. Cardaci , I. Rodrigues

Recent high-resolution observations of metal absorption lines in high-redshift damped Ly-alpha systems have shown that Al III, a tracer of moderately-ionized gas, very often has a velocity structure indistinguishable from that of…

Astrophysics · Physics 2009-10-31 J. Christopher Howk , Kenneth R. Sembach

Density functional electronic structure studies of tetragonal PbVO$_3$ are reported. The results show a an important role for both Pb 6$p$ - O 2$p$ and V $d$ - O $p$ bonding, with an interplay between these. This is discussed in relation to…

Materials Science · Physics 2009-11-11 D. J. Singh

At interfaces between conventional materials, band bending and alignment are classically controlled by differences in electrochemical potential. Applying this concept to oxides in which interfaces can be polar and cations may adopt a mixed…

Recently, it was established that a two-dimensional electron system can arise at the interface between two oxide insulators LaAlO3 and SrTiO3. This paradigmatic example exhibits metallic behaviour and magnetic properties between…

Strongly Correlated Electrons · Physics 2016-11-28 I. I. Piyanzina , Yu. V. Lysogorskiy , I. I. Varlamova , A. G. Kiiamov , T. Kopp , V. Eyert , O. V. Nedopekin , D. A. Tayurskii

The electronic ground state of Ca3LiOsO6 was recently considered within an intermediate coupling regime that revealed J=3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we…

Strongly Correlated Electrons · Physics 2017-11-29 S. Calder , D. J. Singh , V. O. Garlea , M. D. Lumsden , Y. G. Shi , K. Yamaura , A. D. Christianson

Progress in electrochemical applications of ionic liquids builds on an understanding of electrical double-layer. This computational study focuses on structure-determined quantities -- maximum packing density, potentials and capacitances --…

We theoretically study the role of electron-electron interactions in one-dimensional magnetized helical states coupled to an s-wave superconductor. We consider a partially mixed helical (superhelical) regime, where the magnetic field…

Strongly Correlated Electrons · Physics 2025-09-01 Zeinab Bakhshipour , Mir Vahid Hosseini