Research/Sitter/MAGNDATA / 1.315_Mn0.81Cu0.19WO4.mcif

Mn_0.81Cu_0.19WO₄

MAGNDATA entry 1.315 · 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 ≤ 17 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a 2/c BNS 13.70
Parent space group	P 2/c No. 13
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 9.5892 · b 5.7694 · c 4.9708 Å · α 90° · β 91.58° · γ 90°
Transition	17 K (−256 °C)
Measured at	13.5 K
Magnetic ions	Mn
Largest moment component	1.28 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_a 2/c →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.25	0.6875	0.25	1.24	0	1.28	1.7574
Cu1	Cu	0.25	0.6875	0.25
W1	W	0	0.1806	0.25

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

C.M.N. Kumar et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.91.235149

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.315_Mn0.81Cu0.19WO4.mcif from MAGNDATA · entry page

sha256 of this copy: 4e6095ad75bd6bf378f824edc0e2b30e5cb5407a21c3f8c710b5ee4e8c3fc568
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.315_Mn0.81Cu0.19WO4.mcif.