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Spin lattice of Mn3Rh1Ge1Spin lattice of Mn3Rh1Ge1

Mn3Rh1Ge1

MAGNDATA entry 1.1.148 · source
incommensurate spiral
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 spiral: the spin direction rotates as you move along.
ordered ≤ 225 K (−48 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP2121211′(00γ)000s
Point group2221′
Parent space groupP 21 3 No. 198
Repeats every15.08 cells along c (not a whole number: that's what incommensurate means)
Propagation[0 0 0.066319] 1k
Cella 6.6106 · b 6.6106 · c 6.6106 Å · α 90° · β 90° · γ 90°
Transition225 K (−48 °C)
Measured at200 K
Magnetic ionsMn
Largest moment component1.32 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 P2121211′(00γ)000s →
Atom sites · 5 sites · CSV
siteelementxyzmambmc|m| (μB)
Mn1_1Mn0.60620.70430.9602
Mn1_2Mn0.54020.39380.2043
Mn1_3Mn0.29570.45980.8938
Rh1_1Rh0.06120.93880.4388
Ge1_1Ge0.68290.31710.8171

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

A. E. Hall et al. PHYSICAL REVIEW MATERIALS (2023) · doi:10.1103/PhysRevMaterials.7.114402

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.1.148_Mn3RhGe.mcif from MAGNDATA · entry page

sha256 of this copy: af262ae19f02ea1c6cb122f5b9c6c28107d330d2e713da0bc8dfef10e46461ce
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.1.148_Mn3RhGe.mcif.