A5048447567- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Ferroelectric and Piezoelectric Materials
- Crystal Structures and Properties
- Multiferroics and related materials
- Quasicrystal Structures and Properties
Universidade Federal do Paraná
2023
BiFeO3 nanoparticles (<200 nm) were synthesized using the Pechini method and submitted to structural, microstructural, magnetic electrical investigations. Two different structural symmetries proposed describe structure observed properties, rhombohedral (R3c space group) orthorhombic (Pbmn). Electric conductivity results obtained as a function of temperature, show two completely reversible changes in baseline (310 °C 385 °C), indicating corresponding transitions associated with symmetries....
The intermetallic Al5Co2 is defined as a structurally complex material and considered low-order quasicrystalline approximant. A single crystal of Al5Co2(001) was obtained by the Czochralski method. sample characterized X-ray photoelectron spectroscopy (XPS), low-energy electron diffraction (LEED), (PED). surface composition also analyzed XPS, indicating only Al Co compounds. In current research, structure qualitatively using LEED patterns for different incident beam energies (1 × 1)...