Research/Sitter/MAGNDATA / 0.843_SrZn2Fe16O27.mcif

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Spin lattice of Sr1Zn2Fe16O27Spin lattice of Sr1Zn2Fe16O27

Sr1Zn2Fe16O27

MAGNDATA entry 0.843 · source
s-wave ferrimagnet
Opposite moments of different size leave a net magnetisation.
Spin group ¹6/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 345 K (72 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP 63/m m′ c′ BNS 194.270
Point group6/mm′m′
Parent space groupP 63/m m c No. 194
Spinscollinear · net moment 38.8 μB per cell
Propagation[0 0 0] 1k
Cella 5.9092 · b 5.9092 · c 32.8293 Å · α 90° · β 90° · γ 120°
Transition345 K (72 °C)
Measured at293 K
Magnetic ionsFe
Largest moment component4.4 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 P 63/m m′ c′ →
Atom sites · 21 sites · CSV
siteelementxyzmambmc|m| (μB)
Sr1Sr000.25
Fe7PRFe0.33330.66670.7452003.53.5
Fe4OSFe0.33330.66670.9247003.43.4
Zn4OSZn0.33330.66670.9247
Fe3OSSFe0.500002.42.4
Zn3OSSZn0.500
Fe1TSFe000.056500−1.61.6
Zn1TSZn000.0565
Fe2TSFe0.33330.66670.09400−3.53.5
Zn2TSZn0.33330.66670.094
Fe6ORFe0.33330.66670.208600−4.44.4
Zn6ORZn0.33330.66670.2086
Fe5ORSFe0.83610.67210.1514002.92.9
Zn5ORSZn0.83610.67210.1514
O1O0.82240.64470.0352
O2O0.33330.66670.0339
O3O0.51220.02440.1105
O4O000.1147
O5O0.16170.32350.1804
O6O0.33330.66670.8195
O7O0.48420.96830.25

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. I. Morch et al. IUCrJ (2019) · doi:10.1107/S2052252519003130

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.843_SrZn2Fe16O27.mcif from MAGNDATA · entry page

sha256 of this copy: 35561242763d8694a3a9c073b336d832591f0a729e01be124fe97bacb49e5500
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.843_SrZn2Fe16O27.mcif.