4 documents found, page 1 of 1
Enhanced magnetism and suppressed magnetoelastic coupling induced by electron d...
Granado, Eduardo
Crystal structure of fluorite-related Ln3SbO7 (Ln=La–Dy) ceramics studied by sy...
Siqueira, Kisla Prislen Félix; Borges, Raquel Moreira; Granado, Eduardo; Moreira, Leandro Malard; Paula, Ana Maria de; Moreira, Roberto LuizLn3SbO7 (Ln=La, Pr, Nd, Sm, Eu, Gd, Tb and Dy) ceramics were synthesized by solid-state reaction in optimized conditions of temperature and time to yield single-phase ceramics. The crystal structures of the obtained ceramics were investigated by synchrotron X-ray diffraction, second harmonic generation (SHG) and Raman scattering. All samples exhibited fluorite-type orthorhombic structures with different oxygen ...
Synchrotron X-ray diffraction and Raman spectroscopy of Ln3NbO7 (Ln=La, Pr, Nd,...
Siqueira, Kisla Prislen Félix; Soares, J. C.; Granado, Eduardo; Bittar, Eduardo Matzenbacher; Paula, Ana Maria de; Moreira, Roberto Luiz; Dias, AndersonLn3NbO7 (Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) ceramics were obtained by molten- salt synthesis and their structures were systematically investigated by synchrotron X-ray diffraction (SXRD), second harmonic generation (SHG) and Raman spectroscopy. It was observed that ceramics with the largest ionic radii (La, Pr, Nd) crystallized in to the Pmcn space group, while the ceramics with intermed...
Lanthanide Orthoantimonate Light Emitters: Structural, Vibrational, and Optical...
Siqueira, Kisla P. F.; Lima, Patricia P.; Ferreira, Rute A. S.; Carlos, Luis D.; Bittar, Eduardo M.; Granado, Eduardo; Gonzalez, Juan CarlosLanthanide orthoantimonates represented by the chemical formula LnSbO(4) (Ln are all the lanthanides elements with exception of cerium and promethium) were synthesized via solid-state reactions. The crystalline structures of LnSbO(4) were determined by high-resolution Synchrotron X-ray diffraction and the Rietveld method. The samples exhibited monoclinic structures with two different arrangements as a function ...