SrNdZnRuO6

status published · visibility public · id mat:srndznruo6

Formula SrNdZnRuO₆ · double-perovskite · primary · B-site ordered

Series: SrLnMRuO6 ordered double perovskites (Ln = Nd, M = Zn)

Synthesis: solid-state reaction; final sintering 1525 K, 20 h, air

Phase sequence

P2₁/n → P4₂/n at 740 K (discontinuous) → Fm3m at 1060 K (continuous)

Structures

T (K)	space group	a	b	c	β	Rwp	modes	status
300	P21/n	5.5570(1)	5.5932(1)	7.8647(2)	90.013(8)	4.77	yes	published

Transitions

• P2₁/n → P4₂/n at 740 K, discontinuous
• P4₂/n → Fm3m at 1060 K, continuous

Figures

• Figure 5.12 of thesis-03: Temperature evolution of the cell parameters and cell-volume of \mathrm{SrNdMRuO}_{6} (M=\mathrm{Zn}, \mathrm{Co}, \mathrm{Mg}, \mathrm{Ni}). The monoclinic a and b cell parameters have been scaled to be comparable with the tetragonal and cubic cell parameters. The transition temperatures ( \mathrm{T}_{1}: P 2_{1} / n P 4_{2} / n; \mathrm{T}_{2}: P 4_{2} / n F m \overline{3} m) for \mathrm{SrNd} \mathrm{MRuO}_{6}(\mathrm{M}=\mathrm{Zn}, \mathrm{Co}, \mathrm{Mg}, \mathrm{Ni}) are the following: \mathrm{T}_{1}=740,660,560,440 \mathrm{K}, and \mathrm{T}_{2}=1060,1000,940, 820 K, respectively.

Evidence

• doc:thesis-03 · table 2.1 · § 2.1 · OCR line 545 · thesis-only · synthesis
• doc:thesis-03 · table 5.1 · OCR line 950 · cell col = SrNdZnRuO6 · thesis-only · RT structure