Research/Sitter/MAGNDATA / 1.449_Li2CuW2O8.mcif

Li₂CuW₂O₈

MAGNDATA entry 1.449 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 3.9 K (−269 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_S 1 BNS 2.7
Parent space group	P 1 No. 2
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 4.9669 · b 10.9938 · c 5.8883 Å · α 70.72° · β 85.99° · γ 66.04°
Transition	3.9 K (−269 °C)
Measured at	1.5 K
Magnetic ions	Cu
Largest moment component	0.65 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_S 1 →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
W1	W	0.2732	0.4809	0.3385
Cu1	Cu	0.5	0.25	0	0.65	0	0	0.65
O1	O	0.8479	0.1109	0.3494
O2	O	0.2377	0.3752	0.181
O3	O	0.664	0.3939	0.4381
O4	O	0.2779	0.1343	0.089
Li1	Li	0.943	0.2865	0.236

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

K.M. Ranjith et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.92.094426

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.449_Li2CuW2O8.mcif from MAGNDATA · entry page

sha256 of this copy: f9be3e23883ab99c5e20e8a2ee0f02427662cecfea3e9fb9cd5d4c83821313b5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.449_Li2CuW2O8.mcif.