Research/Sitter/MAGNDATA / 0.223_Cu0.95MnAs.mcif

Cu_0.95MnAs

MAGNDATA entry 0.223 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 360 K (87 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n′ m a BNS 62.443
Parent space group	P n m a No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.5716 · b 3.8605 · c 7.3047 Å · α 90° · β 90° · γ 90°
Transition	360 K (87 °C)
Measured at	150 K
Magnetic ions	Mn
Largest moment component	4 μ_B
Method	NSD

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 n′ m a →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.4602	0.25	0.6774	0	4	0	4
Cu1	Cu	0.3768	0.25	0.0589
As1	As	0.2539	0.25	0.3752

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

E. Emmanouilidou et al. PHYSICAL REVIEW B (2017) · doi:10.1103/PhysRevB.96.224405

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.223_Cu0.95MnAs.mcif from MAGNDATA · entry page

sha256 of this copy: a462d9f1651a6186251844568697b8dc1ed805c90faaf1ccdbe172df7a8800cf
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.223_Cu0.95MnAs.mcif.