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 …

Structural/spectroscopic analyses and H2/O2/CO responses of thulium (III) oxide nanosquare sheets

SW Lee, SK Park, BK Min, JG Kang, Y Sohn - Applied surface science, 2014 - Elsevier
Abstract Cubic (space group Ia-3, a= 10.49 Å) bixbyite two-dimensional thulium (III) oxide
nanosquare structure was first prepared, and then fully characterized by scanning electron …

Optical and electro-catalytic studies of nanostructured thulium oxide for vitamin C detection

J Singh, M Srivastava, A Roychoudhury, DW Lee… - Journal of alloys and …, 2013 - Elsevier
In this report, the nanostructured thulium oxide (Tm 2 O 3) has been prepared using the
hydrothermal process without using any template and further heat treatment. The crystalline …

Structure and crystal field analysis using ionoluminescence of Al2O3: Tm3+ phosphor

SS Reddy, KR Nagabhushana, F Singh - Journal of Luminescence, 2019 - Elsevier
Structurally stable rare earth ion doped materials are attracting scientific interest for white
light phosphors and laser system. α-Al 2 O 3: Tm 3+(1 mol%) samples are synthesized by …

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 …

Impurity Centers in Oxides Investigated by γ-γ Perturbed Angular Correlation Spectroscopy and Ab Initio Calculations

AF Pasquevich, M Rentería - Defect and Diffusion Forum, 2011 - Trans Tech Publ
In this chapter Perturbed Angular Correlation (PAC) experiments on binary oxides are
described. These experiments provide local-scale fingerprints about the formation …

Co-effects of Tm2O3 and porous silica on reversible hydrogen storage in NaAlH4

J Ma, J Li, R Tang, D Li, W Li, Q Chen - International journal of hydrogen …, 2011 - Elsevier
The co-effects of lanthanide oxide Tm 2 O 3 and porous silica on the hydrogen storage
properties of sodium alanate are investigated. NaAlH 4–Tm 2 O 3 (10 wt%) and NaAlH 4 …

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 …

Ionic exchange and the local structure in the HfO2/Ho2O3 system studied by PAC spectroscopy

D Richard, GN Darriba, EL Muñoz, LA Errico… - Journal of alloys and …, 2014 - Elsevier
The ionic exchange of Hf and Ho atoms in the HfO 2/Ho 2 O 3 system was studied at the
atomic level applying the nuclear solid-state Time-Differential γ–γ Perturbed-Angular …

Evolution of the quadrupole hyperfine interaction while milling a Si-HfO2 blend

CY Chain, S Ferrari, LC Damonte, JA Martinez… - Journal of alloys and …, 2012 - Elsevier
As HfO2 appears as a good candidate to replace SiO2 in Si complementary metal-oxide-
semiconductor devices, a refined knowledge of the possible solid-state reactions between Si …