Research/Sitter/MAGNDATA / 1.667_UPtGa5.mcif

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Spin lattice of U1Pt1Ga5Spin lattice of U1Pt1Ga5

U1Pt1Ga5

MAGNDATA entry 1.667 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 26 K (−247 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupCa m m a BNS 67.509
Point groupmmm1′
Parent space groupP 4/m m m No. 123
Spinscollinear · net moment 0 μB per cell
Propagation[1/2 0 1/2] 1k
Cella 8.6562 · b 4.3281 · c 13.5778 Å · α 90° · β 90° · γ 90°
Transition26 K (−247 °C)
Measured at3.2 K
Magnetic ionsU
Largest moment component0.32 μB
MethodNPD and NSD

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 Ca m m a →
Atom sites · 5 sites · CSV
siteelementxyzmambmc|m| (μB)
U1U000000.320.32
Pt1Pt000.25
Ga1Ga0.250.50
Ga2_1Ga00.50.1482
Ga2_2Ga0.2500.1482

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

K. Kaneko et al. PHYSICAL REVIEW B (2003) · doi:10.1103/PhysRevB.68.214419

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.667_UPtGa5.mcif from MAGNDATA · entry page

sha256 of this copy: 75b2c0519c45d17397db32847ac82b592de5ce273ae4f3b1ecd1361815aa371e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.667_UPtGa5.mcif.