Research/Sitter/MAGNDATA / 1.224_CoNb2O6.mcif

CoNb₂O₆

MAGNDATA entry 1.224 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 2 K (−271 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_c2₁2₁2₁ BNS 19.28
Parent space group	P b c n No. 60
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 14.1475 · b 11.424 · c 5.0446 Å · α 90° · β 90° · γ 90°
Transition	1.97 K (−271 °C)
Measured at	1.65 K
Magnetic ions	Co
Largest moment component	2.61 μ_B
Method	NSD

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_c2₁2₁2₁ →

Atom sites · 10 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1_1	Co	0	0.0909	0.25	1.57	0	2.61	3.0458
Co1_2	Co	0	0.9091	0.75	1.57	0	2.61	3.0458
Nb1_1	Nb	0.1616	0.1621	0.7445
Nb1_2	Nb	0.8384	0.8379	0.2555
O1_1	O	0.0952	0.1983	0.4329
O1_2	O	0.9048	0.8017	0.5671
O2_1	O	0.0753	0.0576	0.8884
O2_2	O	0.9247	0.9424	0.1116
O3_1	O	0.2523	0.0619	0.5693
O3_2	O	0.7477	0.9381	0.4307

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

W. Scharf et al. Journal of Magnetism and Magnetic Materials (1979) · doi:10.1016/0304-8853(79)90044-1

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.224_CoNb2O6.mcif from MAGNDATA · entry page

sha256 of this copy: 98ca2a00bf61e4ff7b9dbee6db4002237bdc320b7cbf115cf24b0bcb541e94d5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.224_CoNb2O6.mcif.