Research/Sitter/MAGNDATA / 1.61_MnWO4.mcif

MnWO₄

MAGNDATA entry 1.61 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 8 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_a 2/c BNS 15.91
Point group	2/m1′
Parent space group	P 2/c No. 13
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/4 1/2 1/2] 1k
Cell	a 19.2904 · b 11.5066 · c 9.9846 Å · α 90° · β 91.08° · γ 90°
Transition	8 K (−265 °C)
Measured at	1.5 K
Magnetic ions	Mn
Largest moment component	3.6 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 C_a 2/c →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.125	0.3427	0.125	3.6	0	2.7	4.4591
W1_1	W	0	0.09	0.125
W1_2	W	0.25	0.09	0.125
O1_1	O	0.0524	0.051	0.4719
O1_2	O	0.3024	0.051	0.4719
O2_1	O	0.0626	0.1873	0.1971
O2_2	O	0.3126	0.1873	0.1971

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

G. Lautenschläger et al. PHYSICAL REVIEW B (1993) · doi:10.1103/physrevb.48.6087

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.61_MnWO4.mcif from MAGNDATA · entry page

sha256 of this copy: 7b80e38a7596a91b725fd029d4ab2d1b08653155945fa4f6c26a8b036fd28db2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.61_MnWO4.mcif.