Research/Sitter/MAGNDATA / 0.935_Sr2Ni0.9Mg0.1TeO6.mcif

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Spin lattice of Sr2Ni0.9Mg0.1Te1O6Spin lattice of Sr2Ni0.9Mg0.1Te1O6

Sr2Ni0.9Mg0.1Te1O6

MAGNDATA entry 0.935 · source
altermagnet
No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion.
Spin group ²2/²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 29 K (−244 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP 21/c BNS 14.75
Point group2/m
Parent space groupP 21/n No. 14
Spinscollinear · 1 nodal planes · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 5.6052 · b 5.5667 · c 7.8718 Å · α 90° · β 89.955° · γ 90°
Transition29 K (−244 °C)
Measured at4 K
Magnetic ionsNi
Largest moment component1.34 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 P 21/c →
Atom sites · 7 sites · CSV
siteelementxyzmambmc|m| (μB)
Sr1Sr00.4930.25
O1O0.23440.25990.9746
O2O0.55080.50.7472
O3O0.74010.23440.0254
Ni1Ni000.51.2301.341.8196
Mg1Mg000.5
Te1Te000

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

B. Orayech et al. Dalton Trans. (2016) · doi:10.1039/c6dt02473d

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.935_Sr2Ni0.9Mg0.1TeO6.mcif from MAGNDATA · entry page

sha256 of this copy: b6af635c6d56e7b1720cce940f4fd3afd30df5a3c4c433a12e0aa83305b73689
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.935_Sr2Ni0.9Mg0.1TeO6.mcif.