Research/Sitter/MAGNDATA / 1.861_KCoAsO4.mcif

⬇ Download .mcif  ·  Data (JSON)

Spin lattice of K1Co1As1O4Spin lattice of K1Co1As1O4

K1Co1As1O4

MAGNDATA entry 1.861 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 14 K (−259 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupPS 1 BNS 2.7
Point group11′
Parent space groupR 3 No. 148
Spinscollinear · net moment 0 μB per cell
Propagation[1/2 0 1/2] 1k
Cella 10.0812 · b 5.0406 · c 57.398 Å · α 90° · β 90° · γ 120°
Transition14 K (−259 °C)
Measured at0.3 K
Magnetic ionsCo
Largest moment component3.526 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 PS 1 →
Atom sites · 7 sites · CSV
siteelementxyzmambmc|m| (μB)
K1K000.1472
Co2Co000.07930.59603.5263.576
As1As000.2793
O1_1O0.010.3430.061
O1_2O0.82850.6770.061
O1_3O0.16150.980.061
O2O000.3101

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. L. Sarkis et al. PHYSICAL REVIEW B (2025) · doi:10.1103/rnfj-st4c

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.861_KCoAsO4.mcif from MAGNDATA · entry page

sha256 of this copy: 071c1425adf72eb5d250eeafbe059e9b41824a341344d53a0c65224ad6ebad93
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.861_KCoAsO4.mcif.