Research/Sitter/MAGNDATA / 2.2_Sr2F2Fe2OS2.mcif

Sr₂F₂Fe₂OS₂

MAGNDATA entry 2.2 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 106 K (−167 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_a 2/m BNS 12.64
Point group	2/m1′
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[-1/2 0 1/2] · [0 1/2 1/2] 2k
Cell	a 8.0724 · b 8.0724 · c 35.983 Å · α 90° · β 90° · γ 90°
Transition	106 K (−167 °C)
Measured at	16 K
Magnetic ions	Fe
Largest moment component	3.3 μ_B
Method	2k-magnetic structure

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 C_a 2/m →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr_1	Sr	0	0	0.8349
Sr_2	Sr	0	0.5	0.8349
F_1	F	0.25	0	0.875
F_2	F	0.75	0	0.875
O_1	O	0.25	0.75	0
O_2	O	0.75	0.75	0
Fe_1	Fe	0.5	0.75	0	3.3	0	0	3.3
S_1	S	0.75	0.25	0.7967
S_2	S	0.75	0.75	0.7967

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

L.L. Zhao et al. PHYSICAL REVIEW B (R) (2013) · doi:10.1103/physrevb.87.020406

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.2_Sr2F2Fe2OS2.mcif from MAGNDATA · entry page

sha256 of this copy: 36de27244511d3eeaa49249c525b2a5e887a52710c24aead4bfcf457e346c5c4
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.2_Sr2F2Fe2OS2.mcif.