Research/Sitter/MAGNDATA / 1.17_CoV2O6-alpha.mcif

CoV₂O₆-alpha

MAGNDATA entry 1.17 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 14 K (−259 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_c 2/c BNS 15.90
Point group	2/m1′
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 1/2] 1k
Cell	a 9.25 · b 3.5101 · c 13.226 Å · α 90° · β 112.07° · γ 90°
Transition	14 K (−259 °C)
Measured at	1.5 K
Magnetic ions	Co
Largest moment component	4.77 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 C_c 2/c →

Atom sites · 5 sites · CSV

site	element	x	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0	0.25	−0.72	0	4.77	5.0845
V1	V	0.194	0.0775
O1	O	0.0356	0.1119
O2	O	0.3469	0.195
O3	O	0.6924	0.0326

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. Lenertz et al. PHYSICAL REVIEW B (2012) · doi:10.1103/physrevb.86.214428

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.17_CoV2O6-alpha.mcif from MAGNDATA · entry page

sha256 of this copy: c96c9f06c89b8be947547cfe1a2ded628f60e103d00b7926bacec2260ad203ee
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.17_CoV2O6-alpha.mcif.