Research/Sitter/MAGNDATA / 0.12_U3Ru4Al12.mcif

U₃Ru₄Al₁₂

MAGNDATA entry 0.12 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 9.5 K (−264 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C m c m′ BNS 63.461
Point group	m′mm
Parent space group	P 6₃/m m c No. 194
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 8.83 · b 8.83 · c 9.4296 Å · α 90° · β 90° · γ 120°
Transition	9.5 K (−264 °C)
Measured at	1.6 K
Magnetic ions	U
Largest moment component	2.5 μ_B
Method	NSD

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 C m c m′ →

Atom sites · 11 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
U1_1	U	0.6098	0.8049	0.25	0	−2.5	0	2.5
U1_2	U	0.1951	0.8049	0.25	−2.5	−2.5	0	2.5
Ru1_1	Ru	0	0.5	0
Ru1_2	Ru	0.5	0	0
Ru2	Ru	0	0	0
Al1_1	Al	0.6762	0.8381	0.5777
Al1_2	Al	0.8381	0.6762	0.0777
Al2_1	Al	0.878	0.439	0.25
Al2_2	Al	0.561	0.439	0.25
Al3	Al	0.3333	0.6667	0.0189
Al4	Al	0	0	0.25

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

R. Troc et al. Phys. Rev. (2012) · doi:10.1103/physrevb.85.064412

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.12_U3Ru4Al12.mcif from MAGNDATA · entry page

sha256 of this copy: 215c5d6ccb80b31986b8b42791fd829c950b9c442c8b850eb1ea8a5bf1695474
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.12_U3Ru4Al12.mcif.