Research/Sitter/MAGNDATA / 1.94_Ba3LaRu2O9.mcif

Ba₃LaRu₂O₉

MAGNDATA entry 1.94 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 22 K (−251 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_C 2₁/c BNS 14.84
Point group	2/m1′
Parent space group	P 6₃/m m c No. 194
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 5.9492 · b 10.3043 · c 14.9981 Å · α 90° · β 90° · γ 90°
Transition	22 K (−251 °C)
Measured at	1.6 K
Magnetic ions	Ru
Largest moment component	1.3 μ_B
Method	NPD

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_C 2₁/c →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0	0	0.25
Ba2	Ba	0	0.3333	0.8909
La1	La	0	0	0
Ru1	Ru	0	0.3333	0.1656	−1.3	0	−0.6	1.4318
O1_1	O	0	0.4873	0.25
O1_2	O	0.2691	0.7563	0.25
O2_1	O	0	0.1789	0.4047
O2_2	O	0.7317	0.9106	0.4047
O2_3	O	0.2683	0.9106	0.4047

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

M.S. Senn et al. PHYSICAL REVIEW B (2013) · doi:10.1103/PhysRevB.87.134402

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.94_Ba3LaRu2O9.mcif from MAGNDATA · entry page

sha256 of this copy: 4e6a41b8cef07871db0bd0d3580e638bba554dcacf594aac62933d4ce046a871
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.94_Ba3LaRu2O9.mcif.