Research/Sitter/MAGNDATA / 1.51_Cs2CoCl4.mcif

Cs₂CoCl₄

MAGNDATA entry 1.51 · 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 ≤ 0.2 K (−273 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a 2₁ BNS 4.10
Point group	21′
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 9.72 · b 14.626 · c 25.644 Å · α 90° · β 90° · γ 90°
Transition	0.217 K (−273 °C)
Measured at	0.08 K
Magnetic ions	Co
Largest moment component	1.6 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_a 2₁ →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cs1_1	Cs	0.3599	0.125	0.0504
Cs1_2	Cs	0.6401	−0.125	−0.0504
Cs2_1	Cs	0.0222	0.125	−0.0882
Cs2_2	Cs	−0.0222	−0.125	0.0882
Co1_1	Co	0.7649	0.125	0.0389	0	−1.6	−0.4	1.6492
Co1_2	Co	0.2351	−0.125	−0.0389	0	−1.6	0.4	1.6492
Cl1_1	Cl	−0.0037	0.125	0.05
Cl1_2	Cl	0.0037	0.375	0.45
Cl2_1	Cl	0.6877	0.125	0.4556
Cl2_2	Cl	0.3123	0.375	0.0444
Cl31_1	Cl	0.674	0.2509	0.0764
Cl31_2	Cl	0.326	−0.2509	−0.0764
Cl32_1	Cl	0.826	0.2491	0.3264
Cl32_2	Cl	0.174	0.2509	0.1736

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

M. Kenzelmann et al. PHYSICAL REVIEW B (2002) · doi:10.1103/physrevb.65.144432

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.51_Cs2CoCl4.mcif from MAGNDATA · entry page

sha256 of this copy: ca7b51be9d2f8046782c8d04e73b58c0aa1175ae24f0fa31b5040b9263b91664
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.51_Cs2CoCl4.mcif.