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Related papers: Investigation of Nitrogen Doped Barium Zirconate U…

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In light of recent advancements in energy technology, there is an urgent need for lead-free barium titanate (BTO) -based materials that exhibit remarkable ferroelectric and photoelectric properties. Notwithstanding the considerable…

Materials Science · Physics 2024-12-30 Zheng Kang , Mei Wu , Yiyu Feng , Jiahao Li , Jieming Zhang , Haiyi Tian , Ancheng Wang , Yunkai Wu , Xu Wang

Using the first-principles density-functional theory plan-wave pseudopotential method, we investigate the structure and magnetism in 25% Mn substitutive and interstitial doped monoclinic, tetragonal and cubic ZrO2 systematically. Our…

Materials Science · Physics 2015-05-13 Xingtao Jia , Wei Yang , Minghui Qin , Jianping Li

A comparative study of wurtzite ZnO doped by rare earth elements (Tm, Yb, Ce) have been investigated using density functional theory (DFT) based on the full-potential linearized augmented plane wave orbital (FP-LAPW) method, as implemented…

Materials Science · Physics 2020-04-23 M. Khuili , N. Fazouan , H. Abou El Makarim , E. H. Atmani , D. P. Rai , M. Houmad

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 propose a new method for accurately calculating electrical transport properties of a lightly-doped thermoelectric material from density functional theory (DFT) calculations, based on experimental data and density functional theory…

Materials Science · Physics 2014-01-14 Alireza Faghaninia , Cynthia S. Lo

The defect induced chemical expansion in acceptor-doped barium zirconate is investigated using density-functional theory (DFT) calculations. The two defect species involved in the hydration reaction, the +2 charged oxygen vacancy and the…

Materials Science · Physics 2015-09-01 Erik Jedvik , Anders Lindman , Magnús Þór Benediktsson , Göran Wahnström

Using Density functional theory (DFT) in conjunction with a solvation model we have investigated the phenomenon of eletrode-electrolyte interaction at the electrode surface and its consequences on the electrochemical properties like the…

Materials Science · Physics 2022-04-20 Mandira Das , Subhradip Ghosh

In this paper we study, both with theoretical and experimental approach, the effect of iron doping in zirconia. Combining density functional theory (DFT) simulations with the experimental characterization of thin films, we show that iron is…

Recent experimental work has realized a new insulating state of samarium nickelate (SmNiO$_3$), accessible in a reversible manner via high-density electron doping. To elucidate this behavior, we use the first-principles density functional…

Mesoscale and Nanoscale Physics · Physics 2019-11-27 Michele Kotiuga , Karin M. Rabe

The addition of electron donors to the vacant A site of defect-perovskite structure tungsten trioxide causes a series of structural and chemical phase transitions; for instance, in the well-known case of the sodium tungsten bronzes…

Materials Science · Physics 2009-11-10 Andrew D. Walkingshaw , Nicola A. Spaldin , Emilio Artacho

The doping of lighter non-metals like boron and nitrogen into graphene represents a promising advancement in the field of nano-electronic devices, particularly in the development of field-effect transistors (FETs). These doped…

Materials Science · Physics 2023-08-16 Vivek Kumar Yadav

Y-doped BaZrO$_3$ is a promising proton conductor for intermediate temperature solid oxide fuel cells. In this work, a combination of static DFT calculations and DFT based molecular dynamics (DFT-MD) was used to study proton conduction in…

Oxygen vacancies are often attributed to changes in the electronic transport for perovskite oxide materials (ABO$_3$). Here, we use density functional theory (DFT) coupled with non-equilibrium Green's functions (NEGF) to systematically…

Materials Science · Physics 2024-05-24 Victor Rosendal , Nini Pryds , Dirch Hjorth Petersen , Mads Brandbyge

In the present study, structural changes due to gradual doping of Sr in BaTiO3 were investigated by both x-ray and neutron powder diffraction techniques. Ba1-xSrxTiO3 (x=0.0, 0.5 and 1.0) samples were synthesized by PVA evaporation method…

Materials Science · Physics 2020-07-03 I. B. Elius , B. M. Asif , J. Maudood , T. K. Datta , A. K. M. Zakaria , S. Hossain , M. S. Aktar , I. Kamal

Hybrid functionals and empirical correction schemes are compared to conventional semi-local density functional theory (DFT) calculations in order to assess the predictive power of these methods concerning the formation energy and the charge…

Materials Science · Physics 2013-07-02 Sung Sakong , Johann Gutjahr , Peter Kratzer

We study the electronic structure and magnetism of 25% Mn substituted cubic Zirconia (ZrO2) with several homogeneous and heterogeneous doping profiles using density-functional theory calculations. We find that all doping profiles show…

Materials Science · Physics 2008-09-08 Xingtao Jia , Wei Yang , Minghui Qin , Xinglai Zhang , Mingai Sun , Jianping Li

In this work, the electronic and optical properties of a Nitrogen (N) or a Boron (B) doped BeO monolayer are investigated in the framework of density functional theory. It is known that the band gap of a BeO monolayer is large leading to…

Ab-initio spin-polarized Density Functional Theory plus U is used to study the electronic and magnetic properties of tetragonal doped barium titanate (Ba$_{1-x}$Eu$_x$O$_3$) system for different europium (Eu$^{3+}$) concentrations. For this…

Materials Science · Physics 2021-06-04 A. P. Aslla-Quispe , R. H. Miwa , J. D. S. Guerra

Contradictory theoretical results for oxygen vacancies in SrTiO$_3$ (STO) were often related to the peculiar properties of STO, which is a $d^0$ transition metal oxide with mixed ionic-covalent bonding. Here, we apply, for the first time,…

Materials Science · Physics 2020-07-01 Chiara Ricca , Iurii Timrov , Matteo Cococcioni , Nicola Marzari , Ulrich Aschauer

Various physical properties (electronic, optical and thermoelectric) of cubic perovskite oxides $SrXO_3\; (X=Sc,\; Ge,\; Si)$ are investigated by using the density functional theory (DFT) within Wien2k code. This code is based on different…

Materials Science · Physics 2022-11-15 A Waqdim , M Agouri , A Abbassi , B. Elhadadi , Z. Zidane , S Taj , B Manaut , M Driouich , M El Idrissi
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