Research/Sitter/MAGNDATA / 1.892_Cs2RuO4.mcif

Cs₂RuO₄

MAGNDATA entry 1.892 · 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 ≤ 5 K (−268 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a 2₁/c BNS 14.80
Point group	2/m1′
Parent space group	P n m a No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 8.528 · b 12.988 · c 22.996 Å · α 90° · β 90° · γ 90°
Transition	5 K (−268 °C)
Measured at	1.5 K
Magnetic ions	Ru
Largest moment component	1.6 μ_B
Method	SND

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_a 2₁/c →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cs1	Cs	0.9896	0.125	0.1022
Cs2	Cs	0.6668	0.125	0.4564
Ru1	Ru	0.2264	0.125	0.4603	0	−1.6	0	1.6
O1	O	0.2997	0.125	0.0327
O2	O	0.0199	0.125	0.4592
O3_1	O	0.1954	0.2635	0.1762
O3_2	O	0.3046	0.7365	0.4262

Moment components are along the crystal axes a, b, c (μ_B), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

S. D. Nabi et al. Phys. Rev. B (2025) · doi:10.1103/bds5-vkvm

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.892_Cs2RuO4.mcif from MAGNDATA · entry page

sha256 of this copy: fc24414149295f96e5a2e7c3c803d0623ac44ba8d4f37dd176bf6e30bac27bf9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.892_Cs2RuO4.mcif.