Martina Vrankić

TL;DR: In this article, the lattice dynamics calculation of the ZnAl2O4 phonons were performed within the density functional theory for the 3D periodic crystal structures, using Gaussian-type wavefunctions as basis set and a local density approximation gave a good agreement between observed and predicted Raman bands.

TL;DR: In this paper, X-ray powder diffraction was used to characterize the structure of manganese-doped ZnAl2O4 (gahnite) samples, with doping levels 0, 4.3, 7.6 and 11.7 µm.

TL;DR: The magnetic behavior of CoMn2O4 was successfully tailored; depending on the heat treatment, it is possible to switch between the superparamagnetic and ferrimagnetic ordering and to tailor the magnetic transition temperatures, i.e., the boundaries between the hard and soft magnetic behavior.

TL;DR: Powder samples of pure BaAl2O4 and doped with 4.9 atom % Eu in relation to Ba were prepared by a hydrothermal route, and the observed emission spectrum indicated that Eu3+ ions occupied the Ba site with lower symmetry in the doped sample.

TL;DR: X-ray diffraction patterns indicated that samples were nanocrystalline with a hexagonal crystal structure, space group P63, and extended X-ray absorption fine structure suggested an unusual tetrahedral coordination of Cr(3+) ions within the BaAl2O4 host phase.