Research/Sitter/MAGNDATA / 1.526_LiCoF4.mcif

LiCoF₄

MAGNDATA entry 1.526 · 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 ≤ 150 K (−123 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a 2₁/c BNS 14.80
Parent space group	P 2₁/c No. 14
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 10.8592 · b 4.6462 · c 5.5371 Å · α 90° · β 114.24° · γ 90°
Transition	150 K (−123 °C)
Measured at	2 K
Magnetic ions	Co
Largest moment component	3.94 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_a 2₁/c →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1	Li	0.25	0	0.5
Co1	Co	0	0	0	−3.94	0	−2.1	3.6249
F1	F	0.4266	0.7924	0.6668
F2	F	0.1625	0.6844	0.6239

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

P. Lacorre et al. JOURNAL OF SOLID STATE CHEMISTRY (1989) · doi:10.1016/0022-4596(89)90243-0

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.526_LiCoF4.mcif from MAGNDATA · entry page

sha256 of this copy: be56fa62455aa5cf4755cfabeb8d429dae7e8f1c02ee087e0aad04c27ad1e004
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.526_LiCoF4.mcif.