Research/Sitter/MAGNDATA / 2.27_Sr2Mn3Sb2O2.mcif

Sr₂Mn₃Sb₂O₂

MAGNDATA entry 2.27 · 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 ≤ 65 K (−208 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C m′ c m BNS 63.459
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] · [1/2 1/2 0] 2k
Cell	a 6.0173 · b 6.0173 · c 20.074 Å · α 90° · β 90° · γ 90°
Transition	65 K (−208 °C)
Measured at	4 K
Magnetic ions	Mn
Largest moment component	4.2 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 C m′ c m →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0	0	0.421
Mn1	Mn	0	0	0	4.2	0	0	4.2
Mn2	Mn	0.25	0.25	0.25	0	0	3.5	3.5
Sb1	Sb	0	0	0.1622
O1_1	O	0.25	0.25	0
O1_2	O	0.25	0.75	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

S.L. Brock et al. Journal of Alloys and Compounds (1996) · doi:10.1016/0925-8388(95)02066-7

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.27_Sr2Mn3Sb2O2.mcif from MAGNDATA · entry page

sha256 of this copy: c3e6bfe83fe9733a1a747b19e211b3cf784237b5e52381195ba331704393fa9a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.27_Sr2Mn3Sb2O2.mcif.