Research/Sitter/MAGNDATA / 1.162_NdMg.mcif

NdMg

MAGNDATA entry 1.162 · 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 ≤ 61 K (−212 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_c 4/m c c BNS 124.360
Point group	4/mmm1′
Parent space group	P m 3m No. 221
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 3.87 · b 3.87 · c 7.74 Å · α 90° · β 90° · γ 90°
Transition	61 K (−212 °C)
Magnetic ions	Nd
Largest moment component	2.6 μ_B
Method	NPD and NSD

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_c 4/m c c →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mg1	Mg	0.5	0.5	0.25
Nd1	Nd	0	0	0	0	0	2.6	2.6

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. Deldem et al. J. Phys.: Condens. Matter. (1998) · doi:10.1088/0953-8984/10/1/018

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.162_NdMg.mcif from MAGNDATA · entry page

sha256 of this copy: 6e91330039f34dd5f0bab329c141ad713a778a3dfdee66f258aa7331aaf1bb2a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.162_NdMg.mcif.