Research/Sitter/MAGNDATA / 2.59_Mn3As2.mcif

Mn₃As₂

MAGNDATA entry 2.59 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 225 K (−48 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2/c BNS 15.85
Point group	2/m
Parent space group	C 2/m No. 12
Spins	noncoplanar · net moment 10.36 μ_B per cell
Propagation	[0 0 0] · [0 0 1/2] 2k
Cell	a 13.085675 · b 3.658847 · c 17.832944 Å · α 90° · β 132.1886° · γ 90°
Transition	225 K (−48 °C)
Measured at	3 K
Magnetic ions	Mn
Largest moment component	4.48 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/c →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.3082	0	0.3416	1.24	−1.94	2.27	2.5833
Mn2	Mn	0.3888	0	0.0435	0.87	2.28	1.82	2.6723
Mn3	Mn	0	0.5	0.25	0	−4.48	0	4.48
Mn4	Mn	0	0	0	−0.91	1.21	−0.56	1.3861
As1	As	0.0607	0	0.1716
As2	As	0.2468	0	0.0888

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

⬇ 2.59_Mn3As2.mcif from MAGNDATA · entry page

sha256 of this copy: c6e3a411cec46f2fb231e73184dd99f894d62140ebb141552eaf31c547db516b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.59_Mn3As2.mcif.