Research/Sitter/MAGNDATA / 1.8_CeRu2Al10.mcif

CeRu₂Al₁₀

MAGNDATA entry 1.8 · 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 ≤ 27 K (−246 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_C b c m BNS 57.391
Point group	mmm1′
Parent space group	C m c m No. 63
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 0] 1k
Cell	a 9.1272 · b 10.282 · c 9.1902 Å · α 90° · β 90° · γ 90°
Transition	27 K (−246 °C)
Measured at	1.5 K
Magnetic ions	Ce
Largest moment component	0.34 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 m →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Al1_1	Al	0.2248	0.3641	0.75
Al2_1	Al	0.3509	0.1304	0.75
Al3_1	Al	0	0.1607	0.1011
Al4_1	Al	0	0.3774	0.5504
Al5_1	Al	0.2276	0	0.5
Ru1_1	Ru	0.25	0.25	0.5
Ce1_1	Ce	0	0.1238	0.75	0	0	−0.34	0.34

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

D.D. Khalyavin et al. PHYSICAL REVIEW B (2010) · doi:10.1103/physrevb.82.100405

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.8_CeRu2Al10.mcif from MAGNDATA · entry page

sha256 of this copy: 5c2e30b5fba8f839f1907a66b797fe21bb95943c12be8e60e03730fe14d70d2a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.8_CeRu2Al10.mcif.