Research/Sitter/MAGNDATA / 1.349_CoNb3S6.mcif

CoNb₃S₆

MAGNDATA entry 1.349 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 25 K (−248 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_B 2₁2₁2 BNS 18.22
Parent space group	P 6₃ 2 2 No. 182
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 9.9576 · b 5.749 · c 11.886 Å · α 90° · β 90° · γ 90°
Transition	25 K (−248 °C)
Measured at	4.2 K
Magnetic ions	Co
Largest moment component	2.6 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_B 2₁2₁2 →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0.1667	0.5	0.25	2.6	0	0	2.6
Nb1	Nb	0	0	0
Nb2	Nb	0.1667	0.5	0.9944
S1_1	S	0.1661	0.8348	0.3694
S1_2	S	0.9996	0.3317	0.3694
S1_3	S	0.8344	0.8335	0.3694

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

S.S.P. Parkin et al. J. Phys. C: Solid State Phys. (1983) · doi:10.1088/0022-3719/16/14/016

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.349_CoNb3S6.mcif from MAGNDATA · entry page

sha256 of this copy: b1a1361abdfa65d99f8ef288a395b4b55330b862c530e2e08e1f9d8a5497ebe5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.349_CoNb3S6.mcif.