Research/Sitter/MAGNDATA / 0.290_CeCu2.mcif

CeCu₂

MAGNDATA entry 0.290 · 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 ≤ 3.5 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I m′ m′ a′ BNS 74.560
Parent space group	I m m a No. 74
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.43 · b 7.05 · c 7.46 Å · α 90° · β 90° · γ 90°
Transition	3.5 K (−270 °C)
Measured at	2.5 K
Magnetic ions	Ce
Largest moment component	0.33 μ_B
Method	Model completed using J. Phys.: Condens. Matter (1992) 4, 1115-1120

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 I m′ m′ a′ →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0	0.25	0.538	0	0	−0.33	0.33
Cu1	Cu	0	0.051	0.165

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. Trump et al. J. Appl. Phys. (1991) · doi:10.1063/1.348277

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.290_CeCu2.mcif from MAGNDATA · entry page

sha256 of this copy: 9f00862494c6a91973b0596f5d984491fc789faec2265a82246d722a13ecc406
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.290_CeCu2.mcif.