Research/Sitter/MAGNDATA / 1.761_ZnFe2O4.mcif

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Spin lattice of Zn1Fe2O4Spin lattice of Zn1Fe2O4

Zn1Fe2O4

MAGNDATA entry 1.761 · 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 ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 10.6 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupIc 2 2 2 BNS 23.52
Point group2221′
Parent space groupF d 3 m No. 227
Spinscollinear · net moment 0 μB per cell
Propagation[1 0 1/2] 1k
Cella 8.443 · b 8.443 · c 16.886 Å · α 90° · β 90° · γ 90°
Transition10.6 K (−263 °C)
Measured at4.2 K
Magnetic ionsFe
Largest moment component4 μB
MethodNPD and Mossbauer

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 Ic 2 2 2 →
Atom sites · 9 sites · CSV
siteelementxyzmambmc|m| (μB)
Zn1_1Zn0.3750.3750.1875
Zn1_2Zn0.1250.6250.0625
Zn1_3Zn0.1250.1250.3125
Fe1_1Fe0004004
Fe1_2Fe0.750.250.254004
O1_1O0.75940.75940.3797
O1_2O0.99060.49060.6297
O1_3O0.50940.00940.8703
O1_4O0.24060.24060.6203

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. Boucher et al. phys. stat. sol. (1970) · doi:10.1002/pssb.19700400118

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.761_ZnFe2O4.mcif from MAGNDATA · entry page

sha256 of this copy: fba8e6e122b1656c4fe960c897e08a4f497b92f891e03fb8eef6a3279b868af7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.761_ZnFe2O4.mcif.