perovskite atlas Structures, modes and phase transitions · Josu M. Igartua · UPV/EHU

Table 5 · Faik et al. 2009

Table 5 · Faik et al. 2009

status published · visibility public · id tbl:10.1016-j.jssc.2009.04.014.5


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Faik et al. 2009
Table
5
Temperature (K) 110 310 510 700
Space group I 2 / m I 2 / m I4/m Fm-3m
Sb1/Cr2 0, 0, 1/2 0, 0, 1/2 0, 0, 1/2 0, 0, 0
Cr1/Sb2 0, 0, 0 0, 0, 0 0, 0, 0 0, 0, 1/2
Sr x 0.5008(1) 0.4978(2) 0 1/4
y 0 0 1/2 1/4
z 0.2493(2) 0.2493(3) 1/4 1/4
\mathrm{O}_{1} x -0.0627(6) -0.0638(8) 0 0.2584(3)
y 0 0 0 0
z 0.2473(8) 0.2468(2) 0.2431(3) 0
\mathrm{O}_{2} x 0.2484(8) 0.2469(8) 0.2825(2) -
y 0.2362(9) 0.2379(7) 0.2053(9) -
z 0.0279(8) 0.0256(8) 0 -
B\left(\AA^{2}\right) Sb1, Cr2 0.28(2) 0.44(2) 0.68(2) 0.58(2)
Cr1, Sb2 0.75(4) 0.92(4) 1.11(3) 1.22(4)
Sr 0.52(2) 0.81(2) 1.16(2) 1.40(2)
O1, O2 0.34(7) 0.73(8) 1.61(8) 2.15(1)
Cell parameters
a (Å) 5.5485(1) 5.5572(1) 5.5668(1) 7.8939(1)
b (Å) 5.5770(1) 5.5772(1) - -
c(\AA) 7.8336(1) 7.8503(1) 7.8899(1) -
\beta (deg) 89.97(4) 90.04(3) - -
V\left(\AA^{3}\right) 242.40(1) 243.31(1) 244.50(1) 491.89(1)
Reliability factors
R_{\mathrm{p}} (%) 7.80 4.29 4.39 5.95
R_{\mathrm{wp}} (%) 8.87 6.08 6.08 8.26
R_{\text {Bragg }}(\%) 4.19 2.90 2.97 2.95
\chi^{2} (%) 4.48 4.40 4.18 7.83

Evidence