Research/Sitter/MAGNDATA / 1.558_MnSn2.mcif

MnSn₂

MAGNDATA entry 1.558 · 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 ≤ 325 K (52 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_A c c a BNS 68.520
Parent space group	I 4/m c m No. 140
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 0] 1k
Cell	a 13.2876 · b 13.2876 · c 5.4206 Å · α 90° · β 90° · γ 90°
Transition	325 K (52 °C)
Measured at	77 K
Magnetic ions	Mn
Largest moment component	1.67 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 c c a →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0	0.25	1.67	1.67	0	2.3617
Sn1_1	Sn	0.0807	0.3307	0
Sn1_2	Sn	0.1693	0.0807	0

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

L. M. Corliss et al. J. Appl. Phys. (1968) · doi:10.1063/1.2163480

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.558_MnSn2.mcif from MAGNDATA · entry page

sha256 of this copy: 2eb23f32dcef6784c2185a2f967b902a6031369d9e247bd49ba4c844f45b47cc
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.558_MnSn2.mcif.