Research/Sitter/MAGNDATA / 1.871_Li2FeSiO4.mcif

⬇ Download .mcif  ·  Data (JSON)

Spin lattice of Li2Fe1Si1O4Spin lattice of Li2Fe1Si1O4

Li2Fe1Si1O4

MAGNDATA entry 1.871 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 17 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupPa 21/c BNS 14.80
Point group2/m1′
Parent space groupP m n b No. 62
Spinscollinear · net moment 0 μB per cell
Propagation[1/2 0 1/2] 1k
Cella 12.5567 · b 10.629 · c 10.062 Å · α 90° · β 90° · γ 90°
Transition17 K (−256 °C)
Measured at1.5 K
Magnetic ionsFe
Largest moment component2.5 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 Pa 21/c →
Atom sites · 8 sites · CSV
siteelementxyzmambmc|m| (μB)
Li1_1Li0.24740.33130.1464
Li1_2Li0.75260.16870.3964
Fe1Fe0.1250.08150.1003−2.5002.5
Si1Si0.1250.91610.3467
O1O0.1250.06360.3915
O2O0.1250.90960.1844
O3_1O0.2310.34390.3471
O3_2O0.7690.15610.5971

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

W. Hergett et al. PHYSICAL REVIEW B (2025) · doi:10.1103/PhysRevB.111.024414

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.871_Li2FeSiO4.mcif from MAGNDATA · entry page

sha256 of this copy: cccb9bfc153d989a57d83c73b68250cf58a61af131221327e529c0e5016e363c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.871_Li2FeSiO4.mcif.