Research/Sitter/MAGNDATA / 1.624_EuSn2P2.mcif

EuSn₂P₂

MAGNDATA entry 1.624 · 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 ¹3̄¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 30 K (−243 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_c 2/m BNS 12.63
Point group	2/m1′
Parent space group	R 3 m No. 166
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 3/2] 1k
Cell	a 4.069 · b 4.069 · c 51.87 Å · α 90° · β 90° · γ 120°
Transition	30 K (−243 °C)
Measured at	4.5 K
Magnetic ions	Eu
Largest moment component	5.65 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/m →

Atom sites · 3 sites · CSV

site	element	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1	Eu	0	5.65	0	0	5.65
Sn1	Sn	0.1056
P1	P	0.2026

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

X. Gui et al. ACS Cent. Sci. (2019) · doi:10.1021/acscentsci.9b00202

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.624_EuSn2P2.mcif from MAGNDATA · entry page

sha256 of this copy: 2cd851468438d35cb6339abc043017e4932b24eaa8b70a141c595fbb63d8f751
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.624_EuSn2P2.mcif.