Accurate projected augmented wave (PAW) datasets for rare-earth elements (RE= La–Lu)

M Topsakal, RM Wentzcovitch - Computational materials science, 2014 - Elsevier
We provide accurate projected augmented wave (PAW) datasets for rare-earth (RE)
elements with some suggested Hubbard U values allowing efficient plane-wave …

Synthesis, characterization and visible light-responsive photocatalysis properties of Ce doped CuO nanoparticles: a combined experimental and DFT+ U study

MR Islam, M Saiduzzaman, SS Nishat, A Kabir… - Colloids and Surfaces A …, 2021 - Elsevier
In this work, CuO and Ce doped CuO (Ce: CuO) nanoparticles (NPs) were prepared by the
sol-gel auto-combustion process. The effect of the concentration of Ce doping (0, 2%, 4 …

Screened hybrid functional applied to 33 transition-metal perovskites LaO ( = Sc–Cu): Influence of the exchange mixing parameter on the structural …

J He, C Franchini - Physical Review B—Condensed Matter and Materials …, 2012 - APS
We assess the performance of the Heyd-Scuseria-Ernzerhof (HSE) screened hybrid density
functional scheme applied to the perovskite family La MO 3 (M= Sc–Cu) and discuss the role …

Spin-State Crossover and Hyperfine Interactions of Ferric Iron in Perovskite

H Hsu, P Blaha, M Cococcioni, RM Wentzcovitch - Physical Review Letters, 2011 - APS
Using density functional theory plus Hubbard U calculations, we show that the ground state
of (Mg, Fe)(Si, Fe) O 3 perovskite, the major mineral phase in Earth's lower mantle, has high …

Enhanced photocatalytic activity of Ho3+ doped ZnO NPs synthesized by modified sol-gel method: an experimental and theoretical investigation

SA Ayon, MM Billah, SS Nishat, A Kabir - Journal of Alloys and Compounds, 2021 - Elsevier
Abstract All nanocrystalline ZnO nanoparticles (NPs) were synthesized via modified sol-gel
method and origin of the enhanced photocatalytic activity of the Zn 1− x Ho x O (x= 0.01 …

First-principles study of electronic and structural properties of CuO

B Himmetoglu, RM Wentzcovitch, M Cococcioni - Physical Review B …, 2011 - APS
We investigate the electronic and structural properties of CuO, which shows significant
deviations from the trends obeyed by other transition-metal monoxides. Using an extended …

A Complete High-to-Low spin state Transition of Trivalent Cobalt Ion in Octahedral Symmetry in SrCo0.5Ru0.5O3-δ

JM Chen, YY Chin, M Valldor, Z Hu… - Journal of the …, 2014 - ACS Publications
The complex metal oxide SrCo0. 5Ru0. 5O3-δ possesses a slightly distorted perovskite
crystal structure. Its insulating nature infers a well-defined charge distribution, and the six …

Improved luminescence and photocatalytic properties of Sm3+-doped ZnO nanoparticles via modified sol–gel route: a unified experimental and DFT+ U approach

SA Ayon, S Hasan, MM Billah, SS Nishat, A Kabir - Journal of Rare Earths, 2023 - Elsevier
In the current study, a modified sol-gel route was used to produce undoped and Sm 3+
doped (1 mol%, 3 mol% and 5 mol%) ZnO nanoparticles (NPs). The study of opto-structural …

Ion-gel-gating-induced oxygen vacancy formation in epitaxial films from in operando x-ray and neutron scattering

J Walter, G Yu, B Yu, A Grutter, B Kirby, J Borchers… - Physical Review …, 2017 - APS
Ionic-liquid/gel-based transistors have emerged as a potentially ideal means to accumulate
high charge-carrier densities at the surfaces of materials such as oxides, enabling control …

Strain-driven spin-state transition and superexchange interaction in LaCoO: initio study

H Seo, A Posadas, AA Demkov - Physical Review B—Condensed Matter and …, 2012 - APS
Using spin density functional theory with the Hubbard correction, we investigate the
magnetic structure of strained LaCoO 3. We show that beyond biaxial tensile strain of 2.5 …