dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:19:35Z | |
dc.date.available | 2014-05-27T11:19:35Z | |
dc.date.created | 2014-05-27T11:19:35Z | |
dc.date.issued | 1998-07-24 | |
dc.identifier | Journal of Alloys and Compounds, v. 275-277, p. 86-88. | |
dc.identifier | 0925-8388 | |
dc.identifier | http://hdl.handle.net/11449/65478 | |
dc.identifier | 10.1016/S0925-8388(98)00279-5 | |
dc.identifier | WOS:000075617700020 | |
dc.identifier | 2-s2.0-0032118816 | |
dc.identifier | 9430703714241591 | |
dc.description.abstract | Orthorhombic modification of europium doped lanthanum trimetaphosphate has been prepared. The compound was obtained by precipitation of rare earth chloride solution with trimetaphosphoric acid. The characterizations were made using X-ray diffractometry, chemical analysis and infrared spectroscopy. Excitation and emission spectra were recorded at liquid nitrogen and room temperatures. Assignments of the 5D0→7FJ (J=0, 1, 2, 3, 4, 5) transitions were made and an unusual high 5D0→7F4 transition intensity with six split lines has been observed. Structural distortion of the crystal lattice may be caused by the Eu3+ ion inclusion. The simple overlap model was applied for the calculation of the total splitting of the 5D0→7F1 transition, the 5D0→7F0/5D 0→7F2 transition intensity ratio and the Ωλ (λ=2.4) intensity parameters. Theoretical predictions showed to be in good accordance with the experimental data. © 1988 Elsevier Science S.A. | |
dc.language | eng | |
dc.relation | Journal of Alloys and Compounds | |
dc.relation | 3.779 | |
dc.relation | 1,020 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | F-f intensities | |
dc.subject | Lanthanide trimetaphosphate | |
dc.subject | Orthorhombic structure | |
dc.subject | Chemical modification | |
dc.subject | Chlorine compounds | |
dc.subject | Crystal lattices | |
dc.subject | Doping (additives) | |
dc.subject | Electron transitions | |
dc.subject | Europium | |
dc.subject | Infrared spectroscopy | |
dc.subject | Mathematical models | |
dc.subject | Phosphoric acid | |
dc.subject | Precipitation (chemical) | |
dc.subject | Synthesis (chemical) | |
dc.subject | X ray crystallography | |
dc.subject | Lanthanum trimetaphosphate | |
dc.subject | Simple overlap model | |
dc.subject | Lanthanum compounds | |
dc.title | Synthesis, characterization and spectroscopy of the europium doped lanthanum trimetaphosphate | |
dc.type | Artículos de revistas | |