67 citations · 89 across the 6 of their papers we have counts for
6 papers
Cube-shape diffuse scattering and the ground state of
A. Cervellino, S. N. Gvasaliya, B. Roessli +6
A quite unusual diffuse scattering phenomenology was observed in the single-crystal X-ray diffraction pattern of cubic perovskite BMT ($\mathrm{BaMg}_{1/3}\mathrm{Ta}_{2/3}\mathrm{…
The Structure and Low-Energy Phonons of the Nonferroelectric Mixed Perovskite: BaMg1/3Ta2/3O3
A. Cervellino, S. N. Gvasaliya, B. Roessli +5
The structure of BaMg1/3Ta2/3O3 (BMT) has been studied using X-ray scattering. The phonons have been measured and the results are similar to those of other materials with the perov…
Study of diffuse scattering under hydrostatic pressure in PbMg1/3Nb2/3O3
G -M Rotaru, B Padmanabhan, S N Gvasaliya +5
We report measurements of the evolution of the diffuse scattering in a single crystal PbMg1/3Nb2/3O3 as a function of hydrostatic pressure. Upon applying pressure the diffuse scatt…
Diffuse scattering from the lead-based relaxor ferroelectric PbMg_1/3Ta_2/3O_3
A. Cervellino, S. N. Gvasaliya, O. Zaharko +6
The relaxor ferroelectric PbMg_1/3Ta_2/3O_3 was studied by single-crystal neutron and synchrotron x-ray diffraction and its detailed atomic structure has been modeled in terms of s…
Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3
G. -M. Rotaru, B. Roessli, A. Amato +4
We have investigated the magnetic ground-state of the multiferroic relaxor ferroelectric \pfn with SR spectroscopy and neutron scattering. We find that a transition to a partial…
Evolution of the neutron quasi-elastic scattering through the ferroelectric phase transition in 93%PbZnNbO - 7% PbTiO
G. -M. Rotaru, S. N. Gvasaliya, B. Roessli +3
We show that the neutron diffuse scattering in relaxor ferroelectric (1-x)PbZnNbO - x PbTiO (x=0.07) consists of two components. The first component is…