Research/Sitter/MAGNDATA / 0.130_Cu3Mo2O9.mcif

Cu₃Mo₂O₉

MAGNDATA entry 0.130 · 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 ≤ 7.9 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P m′ c 2₁′ BNS 26.68
Point group	m′m2′
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 7.629 · b 6.876 · c 14.573 Å · α 90° · β 90° · γ 90°
Transition	7.9 K (−265 °C)
Measured at	1.6 K
Magnetic ions	Cu
Largest moment component	0.555 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 m′ c 2₁′ →

Atom sites · 23 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1	Cu	0	0	0	0.085	0	0	0.085
Cu2_1	Cu	0.338	0.25	0.643	0.555	0	0.283	0.623
Cu2_2	Cu	0.162	0.75	0.143	0.555	0	−0.283	0.623
Cu3_1	Cu	0.2064	0.25	0.4373	0.555	0	0.283	0.623
Cu3_2	Cu	0.2936	0.75	0.9373	0.555	0	−0.283	0.623
Mo1_1	Mo	0.2657	0.25	0.1696
Mo1_2	Mo	0.2343	0.75	0.6696
Mo2_1	Mo	0.3453	0.25	0.8885
Mo2_2	Mo	0.1547	0.75	0.3885
O1_1	O	0.4125	0.25	0.5159
O1_2	O	0.0875	0.75	0.0159
O2_1	O	0.2925	0.25	0.7715
O2_2	O	0.2075	0.75	0.2715
O3_1	O	0.069	0.25	0.5969
O3_2	O	0.431	0.75	0.0969
O4_1	O	0.2481	0.9636	0.4397
O4_2	O	0.2519	0.0364	0.9397
O5_1	O	0.141	0.0369	0.1373
O5_2	O	0.359	0.9631	0.6373
O6_1	O	0.3029	0.25	0.2857
O6_2	O	0.1971	0.75	0.7857
O7_1	O	0.4692	0.25	0.1103
O7_2	O	0.0308	0.75	0.6103

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. Hase et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.92.054425

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.130_Cu3Mo2O9.mcif from MAGNDATA · entry page

sha256 of this copy: af34e55c8bf38d556685eb3611c44266e952b6eb6f8726fbcb19a8fe2fd4de53
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.130_Cu3Mo2O9.mcif.