Research/Sitter/MAGNDATA / 0.129_Cu3Mo2O9.mcif

Cu₃Mo₂O₉

MAGNDATA entry 0.129 · 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	P 2₁′2₁′2₁ BNS 19.27
Point group	2′2′2
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.6476 · b 6.8855 · c 14.6058 Å · α 90° · β 90° · γ 90°
Transition	9.5 K (−264 °C)
Measured at	1.5 K
Magnetic ions	Cu
Largest moment component	0.7 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 2₁′2₁′2₁ →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mo1	Mo	0.2657	0.25	0.1688
Mo2	Mo	0.3432	0.25	0.8859
Cu1	Cu	0	0	0	0.7	0	0.7	0.9899
Cu2	Cu	0.3386	0.25	0.6426
Cu3	Cu	0.2055	0.25	0.4372	0.7	0	0.7	0.9899
O1	O	0.4114	0.25	0.5149
O2	O	0.292	0.25	0.7701
O3	O	0.0639	0.25	0.5957
O4_1	O	0.249	0.9636	0.4394
O4_2	O	0.751	0.0364	0.5606
O5_1	O	0.1407	0.0396	0.1375
O5_2	O	0.8593	0.9604	0.8625
O6	O	0.3037	0.25	0.2852
O7	O	0.4699	0.25	0.1104

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. Vilminot et al. Inorganic Chemistry (2009) · doi:10.1021/ic802410p

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.129_Cu3Mo2O9.mcif from MAGNDATA · entry page

sha256 of this copy: 586706845bcdfc2219e7f1f279ba899263af060f9bbf8dffc05cecedc5b26ac0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.129_Cu3Mo2O9.mcif.