Sr2TmSbO6 · Perovskite Atlas

status published · visibility public · id mat:sr2tmsbo6

Formula Sr₂TmSbO₆ · double-perovskite · primary · B-site ordered

Series: Sr2MSbO6 antimonates (M = Ln, Y) (M = Tm)

Synthesis: solid-state reaction of ACO3, M2O3 and Sb2O5 in air (6 h 870 K; 24 h 1270 K; 24 h 1470 K; final sintering 1570–1870 K, 48–72 h; slow cooling 3 K/min, regrinding between steps); final sintering 1770 K, 72 h, air

Phase sequence

P2₁/n → R3 at 625 K (discontinuous) → Fm3m at 850 K (continuous)

Structures

T (K)	space group	a	b	c	β	R_wp	modes	status
300	P2₁/n	5.8029(1)	5.8192(8)	8.2130(1)	90.14(1)		yes	published

Transitions

P2₁/n → R3 at 625 K, discontinuous
R3 → Fm3m at 850 K, continuous

Evidence

doc:thesis-04 · § 2.2 · OCR line 496 · thesis-only · synthesis
doc:thesis-04 · table 2.1 · OCR line 512 · thesis-only · final sintering
doc:thesis-04 · table 8.1 · OCR line 1704 · cell col = Sr2TmSbO6 · thesis-only · tolerance factor, synthesis
doc:10.1016-j.poly.2016.09.066 · table 1 · OCR line 64 · cell col = Sr2TmSbO6 · published
doc:thesis-04 · table 8.2 · OCR line 1785 · cell col = Sr2TmSbO6 · thesis-only · RT structure
doc:10.1016-j.poly.2016.09.066 · table 2 · OCR line 126 · cell col = Sr2TmSbO6 · published