Research/Sitter/MAGNDATA / 0.622_NdMnAsO.mcif

NdMnAsO

MAGNDATA entry 0.622 · 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 ≤ 23 K (−250 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P m′ m n 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 4.04446 · b 4.04446 · c 8.87383 Å · α 90° · β 90° · γ 90°
Transition	23 K (−250 °C)
Measured at	1.6 K
Magnetic ions	Mn, Nd
Largest moment component	3.72 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 m′ m n →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.75	0.25	0.5	3.72	0	0	3.72
Nd1	Nd	0.25	0.25	0.1299	1.94	0	0	1.94
As1	As	0.25	0.25	0.6737
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

A. Marcinkova et al. PHYSICAL REVIEW B (2010) · doi:10.1103/PhysRevB.82.174438

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.622_NdMnAsO.mcif from MAGNDATA · entry page

sha256 of this copy: e6d14d755c3c2deffbc4722f83ab23fd6b4d404bcc0c3e606a2a08e0de98e91e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.622_NdMnAsO.mcif.