Figure 1 · pattern · Thesis 2 · Faik 2009a shows the room-temperature x-ray powder diffraction patterns for the various compositions of $\mathrm{Sr}_{2} \mathrm{Cd}_{1-x} \mathrm{Ca}_{x} \mathrm{WO}_{6}$… Figure 1.2 · structure-drawing · Thesis 2 · Faik 2009Representación esquemática de la estructura de la perovskita doble $\mathrm{A}_{2} \mathrm{BB}^{\prime} \mathrm{X}_{6}$: (a) completamente o… Figure 1.2-2 · structure-drawing · Thesis 2 · Faik 2009Representación esquemática de la estructura de la perovskita doble $\mathrm{A}_{2} \mathrm{BB}^{\prime} \mathrm{X}_{6}$: (a) completamente o… Figure p1-3 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure 1.13 · amplitude-vs-t · Thesis 2 · Faik 2009Evolución de las amplitudes de los modos cuyas irrpes son $\Gamma_{1}^{+}$, $\Gamma_{3}^{+}$y $\Gamma_{4}^{+}$(modo primario) en la transici… Figure 3 · cell-vs-t · Thesis 2 · Faik 2009shows the (a) $a, b$ and $c$ lattice parameters, (b) monoclinic angle ( $\beta$) and the (c) unit-cell volume of the synthesized materials.… Figure 5 · structure-drawing · Thesis 2 · Faik 2009presents the projection of the room-temperature crystal structures of $\mathrm{Sr}_{2} \mathrm{ScSbO}_{6}$ and $\mathrm{Ca}_{2} \mathrm{ScSbO}_{6}$… Figure 5-2 · structure-drawing · Thesis 2 · Faik 2009presents the projection of the room-temperature crystal structures of $\mathrm{Sr}_{2} \mathrm{ScSbO}_{6}$ and $\mathrm{Ca}_{2} \mathrm{ScSbO}_{6}$… Figure 6.3 · cell-vs-t · Thesis 2 · Faik 2009Evolution, as a function of increasing calcium content, ( $x=0,0.2,0.4,0.6,0.8,1.0$), at room temperature, of the (a) unit-cell volume, (b)… Figure 7.1 · rietveld-plot · Thesis 2 · Faik 2009Observed ( $\cdot$), calculated ( -) and difference profiles for the Rietveld refinement of $\mathrm{Sr}_{2} \mathrm{Mn}^{2+} \mathrm{WO}_{6}$… Figure 7.1-2 · rietveld-plot · Thesis 2 · Faik 2009Observed ( $\cdot$), calculated ( -) and difference profiles for the Rietveld refinement of $\mathrm{Sr}_{2} \mathrm{Mn}^{2+} \mathrm{WO}_{6}$… Figure 8 · cell-vs-t · Thesis 2 · Faik 2009shows the evolution with temperature of the lattice parameters of $\mathrm{Sr}_{2} \mathrm{CoSbO}_{6}$. In this figure we have represented t… Figure 9 · other · Thesis 2 · Faik 2009shows the phase transition temperatures as a function of the tolerance factor $t$. From this figure, we conclude that the phase transition t… Figure 9.3 · structure-drawing · Thesis 2 · Faik 2009Raman spectra of $\mathrm{Sr}_{2} \mathrm{AlSbO}_{6}$ (sample 1) at different temperatures (excitation 514.5 nm). No significant changes are… Figure 9.3-2 · structure-drawing · Thesis 2 · Faik 2009Raman spectra of $\mathrm{Sr}_{2} \mathrm{AlSbO}_{6}$ (sample 1) at different temperatures (excitation 514.5 nm). No significant changes are… Figure 9.3-3 · structure-drawing · Thesis 2 · Faik 2009Raman spectra of $\mathrm{Sr}_{2} \mathrm{AlSbO}_{6}$ (sample 1) at different temperatures (excitation 514.5 nm). No significant changes are… Figure 9.6 · rietveld-plot · Thesis 2 · Faik 2009Rietveld refinement of $\mathrm{Sr}_{2} \mathrm{CoSbO}_{6}$, at room temperature, using the $R \overline{3}$ and $R \overline{3} m$ space gr… Figure 9.6-2 · rietveld-plot · Thesis 2 · Faik 2009Rietveld refinement of $\mathrm{Sr}_{2} \mathrm{CoSbO}_{6}$, at room temperature, using the $R \overline{3}$ and $R \overline{3} m$ space gr… Figure 10 · other · Thesis 2 · Faik 2009 Figure 10.1 · pattern · Thesis 2 · Faik 2009(a) and (b) Section of the diffractogram of the XRPD measurements refined in the $I 2 / m$ and $I 4 / m$ space groups, respectively, to show… Figure 11 · other · Thesis 2 · Faik 2009 Figure 12 · rietveld-plot · Thesis 2 · Faik 2009shows the evolution of diffraction intensities of this reflection with temperature. From the profile shape characteristic reflections at $2 \theta$… Figure 12-2 · rietveld-plot · Thesis 2 · Faik 2009shows the evolution of diffraction intensities of this reflection with temperature. From the profile shape characteristic reflections at $2 \theta$… Figure 12.3 · pattern · Thesis 2 · Faik 2009Evolution of the laboratory X-ray diffraction pattern at room temperature of $\mathrm{Ca}_{2-x} \mathrm{Sr}_{x} \mathrm{LaSbO}_{6}$ (a) and… Figure 12.3-2 · pattern · Thesis 2 · Faik 2009Evolution of the laboratory X-ray diffraction pattern at room temperature of $\mathrm{Ca}_{2-x} \mathrm{Sr}_{x} \mathrm{LaSbO}_{6}$ (a) and… Figure 14.7 · rietveld-plot · Thesis 2 · Faik 2009Observed X-ray patterns (symbols), calculated (line) and difference profiles for the Rietveld refinement of $\mathrm{Ca}_{2} \mathrm{FeSbO}_{6}$… Figure p32-316 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p37-392 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p38-403 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p40-438 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p43-465 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p45-484 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p45-485 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p45-486 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p46-490 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p48-499 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p49-508 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p71-796 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p72-819 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p78-868 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p79-902 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p80-905 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p81-915 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p81-918 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p83-931 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p84-940 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p91-1018 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p92-1029 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p93-1032 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p99-1078 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p100-1086 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p101-1092 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p102-1105 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p104-1141 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p105-1146 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p107-1164 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p112-1187 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p119-1290 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p124-1337 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p131-1415 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p134-1470 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p135-1479 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p135-1482 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p136-1485 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p138-1526 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p139-1533 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p143-1562 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p147-1628 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p148-1639 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p149-1646 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p150-1653 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p152-1662 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p155-1685 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p156-1688 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p163-1784 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p164-1791 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p168-1847 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p169-1850 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p171-1897 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p175-1923 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p176-1932 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p177-1939 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p179-1969 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p181-1984 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p181-1987 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p185-2010 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p190-2059 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p192-2104 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p193-2110 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p193-2113 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p195-2154 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p196-2161 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p198-2181 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p202-2239 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p203-2248 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p203-2251 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p205-2288 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p206-2301 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p207-2310 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p210-2359 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p211-2362 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image) Figure p219-2462 · other · Thesis 2 · Faik 2009(no caption found; uncaptioned image)