Research/Sitter/MAGNDATA / 1.695_Mn3Ni2Si.mcif

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Spin lattice of Mn3Ni2Si1Spin lattice of Mn3Ni2Si1

Mn3Ni2Si1

MAGNDATA entry 1.695 · 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 ¹3̄¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 215 K (−58 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupCc 2/m BNS 12.63
Point group2/m1′
Parent space groupF d 3 m No. 227
Spinscollinear · net moment 0 μB per cell
Propagation[1/2 1/2 1/2] 1k
Cella 21.512 · b 21.512 · c 21.512 Å · α 90° · β 90° · γ 90°
Transition215 K (−58 °C)
Measured at78 K
Magnetic ionsMn
Largest moment component0.4 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 Cc 2/m →
Atom sites · 10 sites · CSV
siteelementxyzmambmc|m| (μB)
Mn1_1Mn0.21750.1250.1250.40−0.40.5657
Mn1_2Mn0.28250.1250.375−0.400.40.5657
Mn1_3Mn0.1250.21750.1250.40−0.40.5657
Mn1_4Mn0.3750.28250.125−0.400.40.5657
Ni1_1Ni0.41750.41750.4175
Ni1_2Ni0.08250.83250.6675
Ni1_3Ni0.83250.66750.0825
Si1_1Si0.31250.31250.3125
Si1_2Si0.18750.43750.0625
Si1_3Si0.43750.06250.1875

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

M. Kolenda et al. Journal of Magnetism and Magnetic Materials (1990) · doi:10.1016/0304-8853(90)90701-Q

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.695_Mn3Ni2Si.mcif from MAGNDATA · entry page

sha256 of this copy: e47a55814055d12dac6a26fc8550b099d0d131dbf2eb4e085a986ad104796c30
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.695_Mn3Ni2Si.mcif.