Research/Sitter/MAGNDATA / 0.525_NaCeO2.mcif

NaCeO₂

MAGNDATA entry 0.525 · 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 ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 3.2 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4₁′/a′ m′ d BNS 141.556
Parent space group	I 4₁/a m d No. 141
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.7786 · b 4.7786 · c 11.04277 Å · α 90° · β 90° · γ 90°
Transition	3.18 K (−270 °C)
Measured at	1.5 K
Magnetic ions	Ce
Largest moment component	0.57 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 I 4₁′/a′ m′ d →

Atom sites · 3 sites · CSV

site	element	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0	0	0	0.57	0.57
Na1	Na	0.5
O1	O	0.2192

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

M. M. Bordelon et al. PHYSICAL REVIEW B (2021) · doi:10.1103/PhysRevB.103.024430

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.525_NaCeO2.mcif from MAGNDATA · entry page

sha256 of this copy: f3753e98e4838e608e424ba822d45d712fdb5bfb9b17cdc3ba4497acb684b69b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.525_NaCeO2.mcif.