Research/Sitter/MAGNDATA / 1.849_Na3Ni2SbO6.mcif

Na₂Ni₂SbO₆

MAGNDATA entry 1.849 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 16 K (−257 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 2.7
Point group	11′
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 0] 1k
Cell	a 10.4885 · b 18.3315 · c 5.58146 Å · α 90° · β 108.274° · γ 90°
Transition	16 K (−257 °C)
Measured at	5 K
Magnetic ions	Ni
Largest moment component	1.9 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_S 1 →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ni	Ni	0	0.3333	0	0.68	−0.05	1.9	1.8068
Sb	Sb	0	0	0
O1_1	O	0.1365	0.1754	0.7916
O1_2	O	0.8635	0.1754	0.2084
O2	O	0.378	0	0.2056
Na1	Na	0	0.25	0.5
Na2	Na	0	0.4192	0.5

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

V. O. Garlea et al. Acta Cryst. B (2025) · doi:10.1107/S2052520624009831

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.849_Na3Ni2SbO6.mcif from MAGNDATA · entry page

sha256 of this copy: 2bbda0e5b6583b54286ae0ac1b665a87c090eaaa793551dd6f38e84143f56b9f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.849_Na3Ni2SbO6.mcif.

Na2Ni2SbO6

Symmetry

Source

Original file

Na₂Ni₂SbO₆