Research/Sitter/MAGNDATA / 0.1175_Ba3ErRu2O9.mcif

Ba₃ErRu₂O₉

MAGNDATA entry 0.1175 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 6 K (−267 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_C b c n BNS 60.431
Point group	mmm1′
Parent space group	P 63/m m c No. 194
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 11.754 · b 5.877 · c 14.477 Å · α 90° · β 90° · γ 120°
Transition	6 K (−267 °C)
Measured at	1.6 K
Magnetic ions	Er, Ru
Largest moment component	4.63 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 b c n →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0	0	0.25
Er1	Er	0	0	0	1.432	1.432	4.63	4.8464
Ba2	Ba	0.1667	0.6667	0.9069
Ru1	Ru	0.1667	0.6667	0.1631	−0.237	−0.237	−0.5	0.5533
O1_1	O	0.249	0.9958	0.25
O1_2	O	0.0021	0.5021	0.25
O2_1	O	0.0877	0.351	0.4126
O2_2	O	0.3245	0.8245	0.4126

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

Deepak Garg et al. Phys. Rev. B (2026) · doi:10.1103/pbtn-g5wz

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1175_Ba3ErRu2O9.mcif from MAGNDATA · entry page

sha256 of this copy: 74def4ba583544f6bd4c121cd4b32b0e55dfac907d3cb8312a09b65442311c81
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1175_Ba3ErRu2O9.mcif.