First-Principles Prediction of κ-Ga2O3:N Ferromagnetism

W Feng, X Chen, J Liang, G Wang… - The Journal of Physical …, 2024 - ACS Publications
Dilute magnetic semiconductors (DMSs) have attracted widespread interest due to their
potential applications in data storage and spintronics. However, there is no relevant report …

Insights on the relevance of formalism for strongly correlated Ta electrons probing the nanoscale in oxides: Combined time-differential perturbed angular correlation …

GN Darriba, R Faccio, PD Eversheim, M Rentería - Physical Review B, 2023 - APS
This work presents a combined experimental and ab initio study investigating the relevance
of applying the density-functional theory plus U (DFT+ U) formalism to correctly describe …

Experimental TDPAC and Theoretical DFT Study of Structural, Electronic, and Hyperfine Properties in (111In → )111Cd-Doped SnO2 Semiconductor: Ab Initio …

GN Darriba, EL Muñoz, AW Carbonari… - The Journal of …, 2018 - ACS Publications
In this paper we investigate the effect of Cd doping at ultralow concentrations in SnO2 both
experimentally, by measuring the temperature dependence of the electric quadrupole …

Insights into the aftereffects phenomenon in solids based on DFT and time-differential perturbed angular correlation studies in -doped tin oxides

GN Darriba, EL Muñoz, D Richard, AP Ayala… - Physical Review B, 2022 - APS
Recently, a model based on a combined ab initio/time-differential perturbed γ-γ angular
correlation (TDPAC) study in the In 111 (→ Cd 111)-doped SnO 2 semiconductor was …

Preparation of In-doped Y2O3 ceramics through a sol-gel process: Effects on the structural and electronic properties

D Richard, M Rentería, AW Carbonari, M Romero… - Ceramics …, 2020 - Elsevier
The Pechini-type sol-gel (PSG) process has been used for the preparation of doped oxides
due to its capability to overcome most of the difficulties that frequently occur by using other …

Substitutional Ta-doping in Y2O3 semiconductor by sol-gel synthesis: experimental and theoretical studies

D Richard, M Rentería… - … Science and Technology, 2017 - iopscience.iop.org
The Pechini sol-gel method has been employed for the synthesis of pure and (181 Hf→) 181
Ta-doped Y 2 O 3 nanopowders. We performed a structural characterization from the micro …

Local Crystalline Structure of Doped Semiconductor Oxides Characterized by Perturbed Angular Correlations: Experimental and Theoretical Insights

A Burimova, AW Carbonari, NP de Lima… - Crystals, 2022 - mdpi.com
Doping semiconductor oxides with trace amounts of non-native elements can improve their
properties such as bandgap and conductivity. The lack of local techniques makes the …

The GIPAW approach for the study of local structures and the electric field gradients at Cd and Ta impurity sites. Application to doped yttria ceramics

D Richard, AVG Rebaza - Computational Materials Science, 2020 - Elsevier
We report a first-principles study on the structural properties, the electronic structure and the
hyperfine properties of the pure, Cd-, and Ta-doped yttria (Y 2 O 3) using the Gauge …

Hyperfine interactions and diffusion of Cd in TiO2 (rutile)

DV Zyabkin, J Schell, D Gaertner, TT Dang… - Journal of Applied …, 2019 - pubs.aip.org
In the current work, we present an investigation of the electronic and defect structure in (TiO
2⁠) rutile monocrystals by virtue of time differential perturbed angular γ-γ correlation …

Electric field gradient study on pure and Cd-doped In (111) surfaces: Correlation between experiments at the atomic scale and first-principles calculations

GN Darriba, R Faccio, M Rentería - Physical Review B, 2019 - APS
We present a complete all-electron density functional theory/ab initio study of structural and
electronic properties at pure In (111) and Cd-doped In (111) surfaces, enabling a deep …