Research/Sitter/MAGNDATA / 1.835_La2Co2O3Se2.mcif

La₂Co₂O₃Se₂

MAGNDATA entry 1.835 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 217 K (−56 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_A m c m BNS 63.468
Point group	mmm1′
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 1/2 0] 1k
Cell	a 5.73 · b 5.73 · c 18.3438 Å · α 90° · β 90° · γ 90°
Transition	217 K (−56 °C)
Measured at	10 K
Magnetic ions	Co
Largest moment component	2.496 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_A m c m →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
La1	La	0.75	0.75	0.6831
Co1	Co	0	0	0	−2.496	−2.496	0	3.5299
O1	O	0	0	0.25
O2	O	0.75	0.75	0.5
Se1	Se	0.75	0.75	0.0952

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

Yayoi Fuwa et al. J. AM. CHEM. SOC. (2010) · doi:10.1021/ja109007g

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.835_La2Co2O3Se2.mcif from MAGNDATA · entry page

sha256 of this copy: 689fe767ec879c67d68a44ca941858710d959fd4a0558703678db14dac24cd33
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.835_La2Co2O3Se2.mcif.