Research/Sitter/MAGNDATA / 0.118_Ba5Co5ClO13.mcif

Ba₅Co₅ClO₁₃

MAGNDATA entry 0.118 · source

g-wave altermagnet

No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion. g-wave: 4 nodal planes.

Spin group ²6/²m¹m²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 110 K (−163 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 9 properties

Magnetic group	P 6₃′/m′ m′ c BNS 194.268
Point group	6′/m′mm′
Parent space group	P 6₃/m m c No. 194
Spins	collinear · 4 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.669 · b 5.669 · c 24.304 Å · α 90° · β 90° · γ 120°
Transition	110 K (−163 °C)
Magnetic ions	Co
Largest moment component	2.21 μ_B

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 6₃′/m′ m′ c →

Atom sites · 10 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0	0	0.25
Ba2	Ba	0.3333	0.6667	0.3714
Ba3	Ba	0.3333	0.6667	0.9599
Co1	Co	0	0	0.6028	0	0	−0.61	0.61
Co2	Co	0.3333	0.6667	0.8232	0	0	2.21	2.21
Co3	Co	0	0	0	0	0	0.35	0.35
Cl1	Cl	0.3333	0.6667	0.25
O1	O	0.8388	0.6776	0.3506
O2	O	0.1469	0.2938	0.4498
O3	O	0.3333	0.6667	0.75

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

O. Mentre et al. Solid State Sciences (2008) · doi:10.1016/j.solidstatesciences.2007.12.032

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.118_Ba5Co5ClO13.mcif from MAGNDATA · entry page

sha256 of this copy: d8d40f7823cb78eb22d5573d997d481aed8f4bb4a7b6c85eda698f9fc9740e2c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.118_Ba5Co5ClO13.mcif.