Research/Sitter/MAGNDATA / 1.100_Cu2MnSnS4.mcif

Cu₂MnSnS₄

MAGNDATA entry 1.100 · 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 ≤ 8.8 K (−264 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_c 2 BNS 5.16
Point group	21′
Parent space group	I 42m No. 121
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 11.028 · b 5.514 · c 21.578 Å · α 90° · β 90° · γ 90°
Transition	8.8 K (−264 °C)
Measured at	2 K
Magnetic ions	Mn
Largest moment component	4.11 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 C_c 2 →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1	Cu	0	0.5	0.125
Mn1	Mn	0	0	0	1.18	0	4.11	4.276
Sn1	Sn	0	0	0.25
S1_1	S	0.126	0.2521	0.0665
S1_2	S	0.874	0.7479	0.0665

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

T. Fries et al. PHYSICAL REVIEW B (1997) · doi:10.1103/PhysRevB.56.5424

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.100_Cu2MnSnS4.mcif from MAGNDATA · entry page

sha256 of this copy: f7abdbe12e52227088fa596fb9c1a08717ea219e793f8627560819080bf9695b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.100_Cu2MnSnS4.mcif.