Research/Sitter/MAGNDATA / 1.1.145_CeAuSb2.mcif

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Spin lattice of Ce1Au1Sb2Spin lattice of Ce1Au1Sb2

Ce1Au1Sb2

MAGNDATA entry 1.1.145 · source
incommensurate spin-density wave
Incommensurate: the magnetic pattern repeats every so many cells, but not a whole number of them, so it never lines up with the crystal lattice. Here it's a spin-density wave: the size of the spin swells and shrinks as you move along.
ordered ≤ 6.5 K (−267 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupCmmc1′(0,β,1/2)s0ss
Point groupmmm1′
Parent space groupP 4/n m m No. 129
Repeats every2 cells along c (not a whole number: that's what incommensurate means)
Propagation[0.137 0.137 0.5] 1k
Cella 4.3976 · b 4.3976 · c 10.30644 Å · α 90° · β 90° · γ 90°
Transition6.5 K (−267 °C)
Measured at1.7 K
Magnetic ionsCe
Largest moment component0.47 μB
MethodNSD

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 Cmmc1′(0,β,1/2)s0ss →
Atom sites · 4 sites · CSV
siteelementxyzmambmc|m| (μB)
CeCe00.50.7452
AuAu−0.50.50.5
Sb1Sb000
Sb2Sb00.50.3319

Incommensurate: the moments are modulated; the picture evaluates each atom's Fourier series at its own phase.

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

R. Waite et al. PHYSICAL REVIEW B (2022) · doi:10.1103/PhysRevB.106.224415

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.1.145_CeAuSb2.mcif from MAGNDATA · entry page

sha256 of this copy: 7d018adeb174cdd0ea5d74f56d49f42d8d8fb3e3dda28f5e834af8a2d5c8f9f9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.1.145_CeAuSb2.mcif.