Research/Sitter/MAGNDATA / 1.814_TbFe6Ge6.mcif

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Spin lattice of Tb1Fe6Ge6Spin lattice of Tb1Fe6Ge6

Tb1Fe6Ge6

MAGNDATA entry 1.814 · 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 ≤ 450 K (177 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupPB n n a BNS 52.318
Point groupmmm1′
Parent space groupC m c m No. 63
Spinscollinear · net moment 0 μB per cell
Propagation[1 0 0] 1k
Cella 8.097 · b 17.56 · c 5.0923 Å · α 90° · β 90° · γ 90°
Transition450 K (177 °C)
Measured at19 K
Magnetic ionsFe
Largest moment component1.92 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 PB n n a →
Atom sites · 9 sites · CSV
siteelementxyzmambmc|m| (μB)
Tb1Tb00.12570.25
Ge1Ge00.0430.75
Ge2Ge0.50.04310.75
Ge3Ge00.21340.75
Ge4Ge0.50.20640.75
Ge5Ge0.34750.12480.25
Fe1Fe0.250.2501.92001.92
Fe2Fe0.2509001.92001.92
Fe3Fe0.25020.12540.751.92001.92

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

O. Zaharko et al. J. Magn. Magn. Mater. (1998) · doi:10.1016/S0304-8853(98)00148-6

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.814_TbFe6Ge6.mcif from MAGNDATA · entry page

sha256 of this copy: 782245cf4c206fccd2355ba6473d6a9473e294986238c7b6cd1e49abc464c5f5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.814_TbFe6Ge6.mcif.