Research/Sitter/MAGNDATA / 1.2_CuSe2O5.mcif

CuSe₂O₅

MAGNDATA entry 1.2 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 17 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_c 21/c BNS 14.84
Point group	2/m1′
Parent space group	C 2/c No. 15
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1 0 0] 1k
Cell	a 12.254 · b 4.858 · c 7.96 Å · α 90° · β 110.7° · γ 90°
Transition	17 K (−256 °C)
Measured at	6 K
Magnetic ions	Cu
Largest moment component	0.5 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 P_c 21/c →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1	Cu	0	0	0	0.13	0.5	0	0.5166
Se1	Se	0.1399	−0.4353	0.3299
O1	O	0.1258	0.2251	−0.0131
O2	O	0.1256	−0.2237	0.1584
O3	O	0	−0.6168	0.25

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. Herak et al. Phys. Rev. B (2013) · doi:10.1103/physrevb.87.104413

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.2_CuSe2O5.mcif from MAGNDATA · entry page

sha256 of this copy: e153603dcb1d021e4674bd492392429b5bf3710adc172832169169e6b9b21209
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.2_CuSe2O5.mcif.