Research/Sitter/MAGNDATA / 1.625_Sr2Fe3S2O3.mcif

Sr₂Fe₃S₂O₃

MAGNDATA entry 1.625 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 76 K (−197 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_b n m a BNS 62.451
Point group	mmm1′
Parent space group	P b a m No. 55
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 7.703 · b 9.9018 · c 7.9112 Å · α 90° · β 90° · γ 90°
Transition	76 K (−197 °C)
Measured at	63 K
Magnetic ions	Fe
Largest moment component	3.21 μ_B
Method	NPD

Symmetry

Stereogram of the magnetic point group: each operation applied to one direction. Filled = upper hemisphere, ring = lower; red operations include time reversal. Lines are mirrors; polygons are 2/3/4/6-fold axes; the centre ring is inversion.

Every structure in P_b n m a →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.5938	0.1563	0
Fe1	Fe	0	0	0
Fe2	Fe	0.2579	0.0938	0.25	0	0	3.21	3.21
S1	S	0.9011	0.1608	0.25
O1	O	0	0.5	0.25
O2	O	0.7321	0.4089	0

Moment components are along the crystal axes a, b, c (μ_B), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

H. Guo et al. Journal of Magnetism and Magnetic Materials (2021) · doi:10.1016/j.jmmm.2021.167936

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.625_Sr2Fe3S2O3.mcif from MAGNDATA · entry page

sha256 of this copy: 047df08121d5ca328e7f6d790502d940aa7cc5f76266bd5371cad1baaec4a15a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.625_Sr2Fe3S2O3.mcif.