Research/Sitter/MAGNDATA / 0.266_Na2BaCo(VO4)2.mcif

Na₂BaCo(VO₄)₂

MAGNDATA entry 0.266 · source

s-wave ferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

Spin group ¹3̄¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 4 K (−269 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 3 m′ 1 BNS 164.89
Parent space group	P 3 m 1 No. 164
Spins	collinear · net moment 2.2 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.536 · b 5.536 · c 7.0611 Å · α 90° · β 90° · γ 120°
Transition	4 K (−269 °C)
Measured at	0.3 K
Magnetic ions	Co
Largest moment component	2.2 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 3 m′ 1 →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Na1	Na	0.3333	0.6667	0.3339
Ba1	Ba	0	0	0
Co1	Co	0	0	0.5	0	0	2.2	2.2
V1	V	0.3333	0.6667	0.7671
O1	O	0.3333	0.6667	0.0021
O2	O	0.341	0.1706	0.315

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

L.D. Sanjeewa et al. Inorg. Chem. (2019) · doi:10.1021/acs.inorgchem.8b03418

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.266_Na2BaCo(VO4)2.mcif from MAGNDATA · entry page

sha256 of this copy: 6fb4fad53e19214bbd170327a1b319462965c77264665b63170b5d2e9337be36
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.266_Na2BaCo(VO4)2.mcif.