Research/Sitter/MAGNDATA / 1.339_EuAs3.mcif

EuAs₃

MAGNDATA entry 1.339 · 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 ≤ 10 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_c 2/m BNS 12.63
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 1/2] 1k
Cell	a 9.471 · b 7.598 · c 11.556 Å · α 90° · β 112.53° · γ 90°
Transition	10 K (−263 °C)
Measured at	5 K
Magnetic ions	Eu
Largest moment component	5.74 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	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1	Eu	0.1638	0	0.1663	0	5.74	0	5.74
As1	As	0.4931	0	0.3915
As2	As	0.1382	0.2291	0.4011

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. Chattopadhyay et al. Journal of Magnetism and Magnetic Materials (1982) · doi:10.1016/0304-8853(82)90056-7

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.339_EuAs3.mcif from MAGNDATA · entry page

sha256 of this copy: c2db9b66fb323f96345ce8298f42656d2a79ee9d0f9d8f79c1f731cbe42840ac
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.339_EuAs3.mcif.