Research/Sitter/MAGNDATA / 0.187_CeMnAsO.mcif

CeMnAsO

MAGNDATA entry 0.187 · 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 ≤ 35 K (−238 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	Pm′mn BNS 59.407
Parent space group	P 4/n m m No. 129
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.0837 · b 4.0837 · c 8.9567 Å · α 90° · β 90° · γ 90°
Transition	35 K (−238 °C)
Measured at	10 K
Magnetic ions	Ce, Mn
Largest moment component	3.3 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 Pm′mn →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0.25	0.25	0.1287	0.7	0	0	0.7
Mn1	Mn	0.75	0.25	0.5	−3.3	0	0	3.3
As1	As	0.25	0.25	0.672
O1	O	0.75	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

Q. Zhang et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.91.064418

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.187_CeMnAsO.mcif from MAGNDATA · entry page

sha256 of this copy: 2190ce3ac25b52c69c9dea912e420a8f3d866e53109216f1fb0ddf43cf4d0c22
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.187_CeMnAsO.mcif.