Research/Sitter/MAGNDATA / 1.212_Dy2O2Se.mcif

Dy₂O₂Se

MAGNDATA entry 1.212 · 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 ≤ 8.5 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_c2/c BNS 15.90
Parent space group	P 3m 1 No. 164
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 1/2] 1k
Cell	a 3.855 · b 6.6771 · c 13.65 Å · α 90° · β 90° · γ 90°
Transition	8.5 K (−265 °C)
Measured at	1.5 K
Magnetic ions	Dy
Largest moment component	9 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_c2/c →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Dy1	Dy	0.5	0.8333	0.1415	0	0	−9	9
Se1	Se	0	0	0
O1	O	0.5	0.8333	0.311

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

Y. Abbas et al. Solid State Communications (1974) · doi:10.1016/0038-1098(74)90285-3

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.212_Dy2O2Se.mcif from MAGNDATA · entry page

sha256 of this copy: eb8ffdfc7ac4bce28b97b5724a2e1ab00cecbdc896e7303ef8e3af7e35237058
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.212_Dy2O2Se.mcif.