Research/Sitter/MAGNDATA / 0.512_Mn3As2.mcif

Mn₃As₂

MAGNDATA entry 0.512 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹2/¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 270 K (−3 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2/m BNS 12.58
Point group	2/m
Parent space group	C 2/m No. 12
Spins	collinear · net moment 5.92 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 13.166866 · b 3.681129 · c 8.987757 Å · α 90° · β 132.2013° · γ 90°
Transition	270 K (−3 °C)
Measured at	250 K
Magnetic ions	Mn
Largest moment component	2.55 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 2/m →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.3082	0	0.6832	0	−0.52	0	0.52
Mn2	Mn	0.3888	0	0.0869	0	2.55	0	2.55
Mn3	Mn	0	0.5	0.5	0	−1.69	0	1.69
Mn4	Mn	0	0	0	0	0.59	0	0.59
As1	As	0.0607	0	0.3432
As2	As	0.2468	0	0.1777

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.H. Karigerasi et al. Journal of Solid State Chemistry (2021) · doi:10.1016/j.jssc.2020.121901

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.512_Mn3As2.mcif from MAGNDATA · entry page

sha256 of this copy: 30e0c01e84f38d5b258ca2107b3d3dd62af0e4832b1def8c34829fbf485cccbb
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.512_Mn3As2.mcif.