Research/Sitter/MAGNDATA / 1.645_Na2Co2TeO6.mcif

Na₂Co₂TeO₆

MAGNDATA entry 1.645 · 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 ≤ 25 K (−248 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_C 2₁ 2₁ 2₁ BNS 19.29
Point group	2221′
Parent space group	P 6₃ 2 2 No. 182
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0 ] 1k
Cell	a 10.5174 · b 5.2587 · c 11.1699 Å · α 90° · β 90° · γ 120°
Transition	25 K (−248 °C)
Measured at	4 K
Magnetic ions	Co
Largest moment component	2.07 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_C 2₁ 2₁ 2₁ →

Atom sites · 13 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0	0	0.25	0	2.07	0.5	2.1295
Co2	Co	0.1667	0.6667	0.75	0	−1.95	0.5	2.0131
Te1	Te	0.1667	0.6667	0.25
O1_1	O	0.3216	0.9748	0.3452
O1_2	O	0.5126	0.6684	0.3452
O1_3	O	0.1658	0.3568	0.3452
Na1_1	Na	0.12	0.65	0.974
Na1_2	Na	0.675	0.59	0.974
Na1_3	Na	0.205	0.76	0.974
Na2_1	Na	0	0	0
Na3_1	Na	0.351	0.066	0.994
Na3_2	Na	0.967	0.636	0.994
Na3_3	Na	0.682	0.298	0.994

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

A. M. Samarakoon et al. Phys. Rev. B (2021) · doi:10.1103/PhysRevB.104.184415

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.645_Na2Co2TeO6.mcif from MAGNDATA · entry page

sha256 of this copy: d8049bd736b552c8c822b8cb10839510f6ea2db7bd45f128c9c631918fe5ddde
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.645_Na2Co2TeO6.mcif.