Research/Sitter/MAGNDATA / 0.881_CuMnAs.mcif

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Spin lattice of Cu1Mn1As1Spin lattice of Cu1Mn1As1

Cu1Mn1As1

MAGNDATA entry 0.881 · 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 ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 490 K (217 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP m′ m n BNS 59.407
Point groupm′mm
Parent space groupP 4/n m m No. 129
Spinscollinear · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 3.7995 · b 3.7995 · c 6.3319 Å · α 90° · β 90° · γ 90°
Transition490 K (217 °C)
Measured at4 K
Magnetic ionsMn
Largest moment component3.73 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 P m′ m n →
Atom sites · 3 sites · CSV
siteelementxyzmambmc|m| (μB)
Mn1Mn0.250.250.837403.7303.73
Cu1Cu0.750.250.5
As1As0.250.250.2343

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

M. H. Karigerasi et al. PHYSICAL REVIEW MATERIALS (2022) · doi:10.1103/PhysRevMaterials.6.094405

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.881_CuMnAs.mcif from MAGNDATA · entry page

sha256 of this copy: 79068437761434ae037a657f917a91c612152e959936f19be6fb1e56b6d30ad8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.881_CuMnAs.mcif.