Research/Sitter/MAGNDATA / 0.761_SrFe2Se2O.mcif

SrFe₂Se₂O

MAGNDATA entry 0.761 · 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 ≤ 228 K (−45 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P m′ m′ n′ BNS 59.411
Point group	m′m′m′
Parent space group	P m m n No. 59
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.9908 · b 9.648 · c 6.5308 Å · α 90° · β 90° · γ 90°
Transition	228 K (−45 °C)
Measured at	10 K
Magnetic ions	Fe
Largest moment component	3.45 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 m′ m′ n′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.25	0.25	0.001
Fe1	Fe	0.25	0.5865	0.3801	0	3.45	−0.2	3.4558
Se1	Se	0.25	0.5495	0.7507
O1	O	0.25	0.75	0.225

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. Eur. J. Inorg. Chem. (2017) · doi:10.1002/ejic.201700684

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.761_SrFe2Se2O.mcif from MAGNDATA · entry page

sha256 of this copy: b3e7ecaae0f5c211aa8f9ea88b75994d843e3b148266ed78f6c3ab276959e9da
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.761_SrFe2Se2O.mcif.