96 citations · 204 across the 7 of their papers we have counts for
7 papers
Probing crystal structure at the atomic level: Insights from PAC spectroscopy and ab-initio studies
P. Rocha-Rodrigues, I. P. Miranda, S. S. M. Santos +8
Perturbed angular correlation spectroscopy combined with electronic structure calculations is used to unravel the structural phase transition path from the low-temperat…
Magnesium-vacancy optical centers in diamond
Emilio Corte, Greta Andrini, Elena Nieto Hernández +18
We provide the first systematic characterization of the structural and photoluminescence properties of optically active defect centers fabricated upon implantation of 30-100 keV Mg…
Hyperfine local probe study of alkaline-earth manganites SrMnO3 and BaMnO3
J. N. Gonçalves, V. S. Amaral, J. G. Correia +3
We report perturbed angular correlation measurements with 111mCd/111Cd and 111In/111Cd probes, at the ISOLDE-CERN facility, in the manganite compounds BaMnO3 , with the 6H and 15R…
Hyperfine Interactions in MnAs studied by Perturbed Angular Correlations of -Rays using the probe BrSe and first principles calculations for MnAs and other Mn pnictides
J. N. Gonçalves, V. S. Amaral, J. G. Correia +1
The MnAs compound shows a first-order transition at T C, and a second-order transition at T C. The first-order transition, with structural (hexagonal-ort…
Ab-initio study of the relation between electric polarization and electric field gradients in ferroelectrics
J. N. Gonçalves, A. Stroppa, J. G. Correia +4
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a…
New phase transition in system: evidence for electrical polarization in charge ordered manganites
A. M. L. Lopes, J. P. Araujo, V. S. Amaral +3
A detailed study of the electric field gradient (EFG) across the Pr1-xCaxMnO3 phase diagram and its temperature dependence is given. Clearly, distinct EFG behaviours for samples ou…