Research/Sitter/MAGNDATA / 1.272_CeNiAsO.mcif

CeNiAsO

MAGNDATA entry 1.272 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 7.6 K (−266 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a 2₁ BNS 4.10
Parent space group	P 4/n m m No. 129
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 8.1242 · b 4.0621 · c 8.1058 Å · α 90° · β 90° · γ 90°
Transition	7.6 K (−266 °C)
Measured at	2 K
Magnetic ions	Ce
Largest moment component	0.3 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 →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0.125	0.25	0.1471	0.3	−0.22	0	0.372
Ni1	Ni	0.375	0.25	0.5
As1	As	0.125	0.25	0.6439
O1	O	0.375	0.25	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

S. Wu et al. Phys. Rev Let. (2019) · doi:10.1103/PhysRevLett.122.197203

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.272_CeNiAsO.mcif from MAGNDATA · entry page

sha256 of this copy: 06eb7f5e97e7fafc3ef733eaa46fdf19587f32d2867f7263116091a9ce3792c8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.272_CeNiAsO.mcif.