14 citations · 15 across the 2 of their papers we have counts for
6 papers
The effect of structural and magnetic disorder on the 3-5 exchange interactions of LaCaCoIrO
L. Bufaiçal, E. Sadrollahi, F. J. Litterst +7
The delicate balance between spin-orbit coupling, Coulomb repulsion and crystalline electric field interactions observed in Ir-based oxides is usually manifested as exotic magnetic…
Geometrical and transport properties of sequential adsorption clusters
E. B. Araújo, A. A. Moreira, H. J. Herrmann +2
We investigate transport properties of percolating clusters generated by irreversible cooperative sequential adsorption (CSA) on square lattices with Arrhenius rates given by ki= q…
A Raman Study of Morphotropic Phase Boundary in PbZr1-xTixO3 at low temperatures
K. C. V. Lima, A. G. Souza, A. P. Ayala +5
Raman spectra of PbZr1-xTixO3 ceramics with titanium concentration varying between 0.40 and 0.60 were measured at 7 K. By observing the concentration-frequency dependence of vibrat…
Concentration-Pressure phase diagram for rich Zr PZT ceramics
A. G. Souza Filho, P. T. C. Freire, A. P. Ayala +6
This work reports on the systematic high pressure Raman studies in the PbZrTiO () ceramics performed at room temperature. The pressure depend…
The monoclinic phase of PZT ceramics: Raman and phenomenological theory studies
A. G. Souza Filho, K. C. V. Lima, A. P. Ayala +5
This work reports on the first Raman detection of the tetragonal to monoclinic phase transition in PZT ceramics near morphotropic phase boundary at low temperatures. The transition…
A Raman Investigation of PbZr0.94Ti0.06O3 Ceramics Under High-Pressures
A. G. Souza Filho, P. T. C. Freire, J. M. Sasaki +5
We have investigated the behavior of the PbZr(0.94}Ti(0.06)O3 Raman spectra as a function of Hydrostatic pressures. The new structural phases were identified based on previous work…