Research/Sitter/MAGNDATA / 1.0.6_CoV2O6.mcif

CoV₂O₆

MAGNDATA entry 1.0.6 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹2/¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 15 K (−258 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2′/m′ BNS 12.62
Point group	2′/m′
Parent space group	C 2/m No. 12
Spins	collinear · net moment 8.8 μ_B per cell
Propagation	[-1/3 1 1/3] · [0 0 0] 1k
Cell	a 9.1059 · b 3.5027 · c 19.7916 Å · α 90° · β 110.09° · γ 90°
Transition	15 K (−258 °C)
Measured at	2 K
Magnetic ions	Co
Largest moment component	4.4 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 2′/m′ →

Atom sites · 14 sites · CSV

site	element	x	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1_1	Co	0	0	0	0	4.4	4.4
Co1_2	Co	0	0.3333	0	0	−4.4	4.4
V1_1	V	0.191	0.8447
V1_2	V	0.191	0.178
V1_3	V	0.809	0.4887
O1_1	O	0.3464	0.819
O1_2	O	0.3464	0.1523
O1_3	O	0.6536	0.5144
O2_1	O	0.0333	0.7704
O2_2	O	0.0333	0.1037
O2_3	O	0.9667	0.5629
O3_1	O	0.3088	0.9569
O3_2	O	0.3088	0.2903
O3_3	O	0.6912	0.3764

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. Markkula et al. PHYSICAL REVIEW B (2012) · doi:10.1103/physrevb.86.134401

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.6_CoV2O6.mcif from MAGNDATA · entry page

sha256 of this copy: 4a1bf65db90c4c4b5d406ece111728ab17d44a98bfaa50bf6fd7a767a42cefe8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.6_CoV2O6.mcif.