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The dielectric breakdown at metal-oxide interfaces is a critical electronic device failure mechanism. Electronic tunneling through dielectric layers is a well-accepted explanation for this phenomenon. Theoretical band alignment studies,…

Materials Science · Physics 2016-10-28 Eric Tea , Jianqiu Huang , Celine Hin

Electronic band structure and optical properties of zinc monochalcogenides with zinc-blende- and wurtzite-type structures were studied using the ab initio density functional method within the LDA, GGA, and LDA+U approaches. Calculations of…

Soft Condensed Matter · Physics 2009-11-13 S. Zh. Karazhanov , P. Ravindran , A. Kjekshus , H. Fjellvag , B. G. Svensson

We present a computational study of 2$p$ core-level X-ray photoemission spectra of transition metal monoxides MO (M=Ni, Co, Mn) and sesquioxides M$_2$O$_3$ (M=V, Cr, Fe) using a theoretical framework based on the local-density approximation…

Strongly Correlated Electrons · Physics 2017-07-19 Atsushi Hariki , Takayuki Uozumi , Jan Kuneš

Transition metal oxides have generated significant interest for their potential as catalysts for the oxygen evolution reaction (OER) in alkaline environments. Iron and nickel-based perovskite oxides have proven particularly promising, with…

Materials Science · Physics 2023-10-17 Rajendra Paudel , Andricus R. Burton , Marcelo A. Kuroda , Byron H. Farnum , Ryan B. Comes

The properties of many intrinsic defects in the wide band gap semiconductor LaAlO3 are studied using the screened hybrid functional of Heyd, Scuseria, and Ernzerhof (HSE). As in pristine structures, exact exchange included in the screened…

Materials Science · Physics 2015-06-17 Fedwa El-Mellouhi , Edward N. Brothers , Melissa J. Lucero , Gustavo E. Scuseria

By means of first-principles density-functional theory (DFT) calculations, we perform a comparative analysis of the electronic and magnetic properties of transition metal-doped TiO$_2$. The electronic band gaps of Ti$_x$M$_{1-x}$O$_2$,…

Materials Science · Physics 2026-01-26 Vikash Mishra , Shashi Pandey , Swaroop Ganguly , Alok Shukla

The electronic properties of single- and multi-cation transparent conducting oxides (TCOs) are investigated using first-principles density functional approach. A detailed comparison of the electronic band structure of stoichiometric and…

Materials Science · Physics 2015-05-18 Julia E. Medvedeva , Chaminda L. Hettiarachchi

Accurate ab initio calculations of 3d transition metal monoxide molecules have attracted extensive attention because of its relevance in physical and chemical science, as well as theoretical challenges in treating strong electron…

Strongly Correlated Electrons · Physics 2021-11-02 Tonghuan Jiang , Yilin Chen , Nikolay Bogdanov , Enge Wang , Ali Alavi , Ji Chen

We report the structural, elastic and vibrational properties of five ionic-molecular solid oxidizers MNO$_3$ (M = Li, Na, K) and MClO$_3$ (M = Na, K). By treating long range electron-correlation effects, dispersion corrected method leads to…

Materials Science · Physics 2016-09-05 N. Yedukondalu , G. Vaitheeswaran

We use a combination of conventional density functional theory (DFT) and post-DFT methods, including the local density approximation plus Hubbard $U$ (LDA+$U$), PBE0, and self-consistent $GW$ to study the electronic properties of…

Materials Science · Physics 2011-08-10 Gaoyang Gou , Joseph W. Bennett , Hiroyuki Takenaka , Andrew M. Rappe

Correlated oxide heterostructures pose a challenging problem in condensed matter research due to their structural complexity interweaved with demanding electron states beyond the effective single-particle picture. By exploring the…

Materials Science · Physics 2018-04-05 Frank Lechermann

A first-principles electronic structure study of orthorhombic, monoclinic and rhombohedral LiMnO$_{2}$ has been carried out using the full-potential linearized augmented plane-wave method. The exchange and correlations have been treated…

Strongly Correlated Electrons · Physics 2009-11-11 Nitya Nath Shukla , R. Prasad

We investigate the electronic properties of the LaAlO3/SrTiO3 interface using density functional theory. In contrast to previous studies, which relied on (semi-)local functionals and the GGA+U method, we here use a recently developed hybrid…

Strongly Correlated Electrons · Physics 2013-07-18 F. Cossu , U. Schwingenschlögl , V. Eyert

We present a survey of the structural and magnetic properties of submonolayer transition metal dioxides on the (001) surfaces of the heavy face-centered cubic (fcc) noble metals Ir and Pt performed by spin-averaged scanning tunneling…

Materials Science · Physics 2019-10-08 M. Schmitt , C. H. Park , P. Weber , A. Jäger , J. Kemmer , M. Vogt , M. Bode

The variational cluster approximation proposed by Potthoff is applied to the calculation of the single-particle spectral function of the transition metal oxides MnO, CoO and NiO. Trial self-energies and the numerical value of the…

Strongly Correlated Electrons · Physics 2009-11-13 R. Eder

We report calculations of the electronic structure of FeO in the LDA and LDA+U approximation with and without rhombohedral distortion. In both cases LDA renders an antiferromagnetic metal, and LDA+U opens a Hubbard gap. However, the…

Strongly Correlated Electrons · Physics 2009-10-28 I. I. Mazin , V. I. Anisimov

In this paper, the structural, electronic and optical properties of tin-monoxide and the impact of Indium (In) doping into tin-monoxide are computed by Local Density Approximation (LDA) under density function theory (DFT) framework. The…

We present research results on the electronic transport in heterostructures based on p-type nickel oxide (NiO) with the n-type oxide semiconductors zinc oxide (ZnO) and cadmium oxide (CdO). NiO is a desirable candidate for application in…

The metal-insulator transition (MIT) and the underlying electronic and orbital structure in $e_{g}^{1}$ quantum wells based on NdNiO$_{3}$ was investigated by d.c. transport and resonant soft x-ray absorption spectroscopy. By comparing…

Strongly Correlated Electrons · Physics 2015-06-11 Jian Liu , M. Kareev , D. Meyers , B. Gray , P. Ryan , J. W. Freeland , J. Chakhalian

A band structure description of the observed large band gaps and moments in both the antiferromagnetic (AFM) and paramagnetic (PM) phases of the classic NaCl-structure Mott insulators MnO, FeO, CoO, and NiO is provided by ordinary,…

Materials Science · Physics 2018-01-10 Giancarlo Trimarchi , Alex Zunger