Research/Sitter/MAGNDATA / 0.388_Co3Al2Si3O12.mcif

Co₃Al₂Si₃O₁₂

MAGNDATA entry 0.388 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 11 K (−262 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4₁/a′ c d BNS 142.563
Parent space group	I a 3 d No. 230
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 11.4147 · b 11.4147 · c 11.4147 Å · α 90° · β 90° · γ 90°
Transition	11 K (−262 °C)
Measured at	2 K
Magnetic ions	Co
Largest moment component	3.45 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 I 4₁/a′ c d →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1_1	Co	0.125	0	0.25	3.45	0	0	3.45
Co1_2	Co	0.25	0.125	0	2.82	0	1.99	3.4514
Al1	Al	0	0	0
Si1_1	Si	0.375	0	0.25
Si1_2	Si	0.25	0.375	0
O1_1	O	0.0336	0.0517	0.653
O1_2	O	0.653	0.0336	0.0517
O1_3	O	0.0517	0.653	0.0336

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

Q. Cui et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.101.144424

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.388_Co3Al2Si3O12.mcif from MAGNDATA · entry page

sha256 of this copy: f17dc287df3389b799e7f6d5a074debfef2135bbf90a599a3e14da966711bbf2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.388_Co3Al2Si3O12.mcif.