The spectra shows two bands characteristic of spinel structures: one in the 590-560 cm-1 region (ν1) and another one in the 685-665 cm-1 interval (ν2). FTIR spectra for ZnCo2O4 and ZnCo2O4: Eu3+ calcined at different temperatures are shown in Figure 4. X-ray diffraction pattern for (a) ZnCo2O4 and (b) ZnCo2O4: Eu3+ powders calcined at different temperatures. Os fundamentos da fisica 3 ramalho nicolau toledo download. Download keh du tumhe ringtone - Free download mp3 evie tamala terlalu sayang.