Research/Sitter/MAGNDATA / 1.1.140_DyFeO3.mcif

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Spin lattice of Dy1Fe1O3Spin lattice of Dy1Fe1O3

Dy1Fe1O3

MAGNDATA entry 1.1.140 · source
incommensurate spin-density wave
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 spin-density wave: the size of the spin swells and shrinks as you move along.
ordered ≤ 4 K (−269 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupPbnm1(0,0,γ)ss0
Point groupmmm1
Parent space groupP b n m No. 62
Repeats every35.71 cells along c (not a whole number: that's what incommensurate means)
Propagation[0 0 0.028] 1k
Cella 5.28789 · b 5.58257 · c 7.59449 Å · α 90° · β 90° · γ 90°
Transition4 K (−269 °C)
Measured at1.6 K
Magnetic ionsDy, Fe
Largest moment component9.34 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 Pbnm1(0,0,γ)ss0 →
Atom sites · 4 sites · CSV
siteelementxyzmambmc|m| (μB)
Dy1Dy−0.020.06870.25
Fe1Fe0.50003.7703.77
O1O0.11090.45560.25
O2O0.68870.30760.0571

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

C. Ritter et al. J. Phys.: Condens. Matter (2022) · doi:10.1088/1361-648X/ac6787

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.1.140_DyFeO3.mcif from MAGNDATA · entry page

sha256 of this copy: 5e62b33ce3ff8c5d30a6ca50eb6b1b25fe0986eb03d5474cffaf8f751d6c17f7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.1.140_DyFeO3.mcif.