Research/Sitter/MAGNDATA / 1.869_DyNiAl4Ge2.mcif

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Spin lattice of Dy1Ni1Al1Ge2Spin lattice of Dy1Ni1Al1Ge2

Dy1Ni1Al1Ge2

MAGNDATA entry 1.869 · 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 ¹3̄¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 9 K (−264 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupCc 2/m BNS 12.63
Point group2/m1′
Parent space groupR 3 m No. 166
Spinscollinear · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 4.0849 · b 4.0849 · c 61.6488 Å · α 90° · β 90° · γ 120°
Transition9 K (−264 °C)
Measured at1.5 K
Magnetic ionsDy
Largest moment component6.75 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 Cc 2/m →
Atom sites · 5 sites · CSV
siteelementxyzmambmc|m| (μB)
Al2Al000.0389
GeGe000.1114
Al1Al000.1557
NiNi000
DyDy000.256.75006.75

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

HengHeng Wu et al. PHYSICAL REVIEW MATERIALS (2025) · doi:10.1103/p44f-rl47

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.869_DyNiAl4Ge2.mcif from MAGNDATA · entry page

sha256 of this copy: 26779adf8d4679b59646160a87428a95d854620670abb67fe0775c6a8effe1c4
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.869_DyNiAl4Ge2.mcif.