Research/Sitter/MAGNDATA / 1.576_Yb2O2S.mcif

Yb₂O₂S

MAGNDATA entry 1.576 · 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 ≤ 3 K (−270 °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	P 3 m 1 No. 164
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 3.726 · b 3.726 · c 13.018 Å · α 90° · β 90° · γ 120°
Transition	3 K (−270 °C)
Measured at	1.5 K
Magnetic ions	Yb
Largest moment component	2 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_c 2/m →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
O1	O	0.3333	0.6667	0.31
S1	S	0	0	0
Yb1	Yb	0.3333	0.6667	0.145	2	0	0	2

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

R. Ballestracci et al. Solid State Communications (1969) · doi:10.1016/0038-1098(69)90074-X

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.576_Yb2O2S.mcif from MAGNDATA · entry page

sha256 of this copy: b64bf7ef67172b68bf7221f8144cb2d604d194899c5709d0a6d9d43a4ec2671e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.576_Yb2O2S.mcif.