Research/Sitter/MAGNDATA / 1.251_NdCo2P2.mcif

NdCo₂P₂

MAGNDATA entry 1.251 · 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 ≤ 309 K (36 °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
Parent space group	I 4/m m m No. 139
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 3.893 · b 3.893 · c 19.256 Å · α 90° · β 90° · γ 90°
Transition	309 K (36 °C)
Measured at	48 K
Magnetic ions	Co, Nd
Largest moment component	0.74 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_c 4/m c c →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Nd1_1	Nd	0	0	0
Nd1_2	Nd	0.5	0.5	0.25	0	0	−0.74	0.74
Co1	Co	0	0.5	0.125	0	0	0.64	0.64
P1_1	P	0	0	0.1851
P1_2	P	0.5	0.5	0.4351

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. Reehuis et al. J. Phys. Chem. Solids (1993) · doi:10.1016/0022-3697(93)90330-T

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.251_NdCo2P2.mcif from MAGNDATA · entry page

sha256 of this copy: 11b18054282682cabbddc001b5df35aeaf58244ae7c9352edda432aa10e56a1d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.251_NdCo2P2.mcif.