Research/Sitter/MAGNDATA / 1.783_Fe0.99O.mcif

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Spin lattice of Fe0.99O1Spin lattice of Fe0.99O1

Fe0.99O1

MAGNDATA entry 1.783 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 195 K (−78 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupPS 1 BNS 2.7
Point group11′
Parent space groupC 2/m No. 12
Spinscollinear · net moment 0 μB per cell
Propagation[0 0 1/2] 1k
Cella 5.2642 · b 3.0327 · c 6.1252 Å · α 90° · β 124.646° · γ 90°
Transition195 K (−78 °C)
Measured at8 K
Magnetic ionsFe
Largest moment component4.77 μB
MethodNPD

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 PS 1 →
Atom sites · 2 sites · CSV
siteelementxyzmambmc|m| (μB)
Fe1Fe0002.7−0.94.774.0261
O1O00.50.25

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

Source

H. Fjellvag et al. American Mineralogist (2002) · doi:10.2138/am-2002-2-318

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.783_Fe0.99O.mcif from MAGNDATA · entry page

sha256 of this copy: cfb610a30011fd91deabb51bae82ad6a6c1db5b699c37b5567c4fec78d4973d3
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.783_Fe0.99O.mcif.