Research/Sitter/MAGNDATA / 1.767_Li2CoCl4.mcif

Li₂CoCl₄

MAGNDATA entry 1.767 · 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 ≤ 7 K (−266 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_C b a m BNS 55.363
Point group	mmm1′
Parent space group	C m m m No. 65
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 0] 1k
Cell	a 7.18561 · b 10.1807 · c 3.56722 Å · α 90° · β 90° · γ 90°
Transition	7 K (−266 °C)
Measured at	3 K
Magnetic ions	Co
Largest moment component	2.19 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 P_C b a m →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1	Li	0.25	0.25	0.5
Co1	Co	0	0	0	0	0	2.19	2.19
Cl1	Cl	0.2333	0	0.5
Cl2	Cl	0	0.2398	0

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

Z.W. Riedel et al. Phys Rev Mat (2023) · doi:10.1103/PhysRevMaterials.7.104405

Cite the original paper and MAGNDATA, not this mirror.

Mirror note

re-encoded from Mac OS Roman to UTF-8. Differs from the Bilbao original.

Original file

⬇ 1.767_Li2CoCl4.mcif from MAGNDATA · entry page

sha256 of this copy: e03404805521414b61617b826588f89540467c39953d94ad7ee73254ae8cbfb5
This copy was altered (see the mirror note above), so the original will hash differently.