Research/Sitter/MAGNDATA / 1.0.3_CsCoBr3.mcif

CsCoBr₃

MAGNDATA entry 1.0.3 · 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 ≤ 10 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C m′ c 2₁′ BNS 36.174
Point group	m′m2′
Parent space group	P 6₃/m m c No. 194
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/3 1/3 0] · [0 0 0] 2k
Cell	a 22.56 · b 22.56 · c 6.32 Å · α 90° · β 90° · γ 120°
Transition	10 K (−263 °C)
Measured at	4.5 K
Magnetic ions	Co
Largest moment component	3.02 μ_B
Method	polar phase

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 m′ c 2₁′ →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Br1_1	Br	0.0536	0.1071	0.25
Br1_2	Br	0.8929	0.9464	0.25
Br1_3	Br	0.0536	0.4405	0.25
Br1_4	Br	0.8929	0.2798	0.25
Br1_5	Br	0.0536	0.2798	0.25
Cs1_1	Cs	0.1111	0.2222	0.75
Cs1_2	Cs	0.2222	0.1111	0.25
Co1_1	Co	0	0	0	0	0	−3.02	3.02
Co1_2	Co	0	0.3333	0	0.51	0	2.98	3.0233

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

W.B. Yelon et al. PHYSICAL REVIEW B (1975) · doi:10.1103/physrevb.12.5007

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.3_CsCoBr3.mcif from MAGNDATA · entry page

sha256 of this copy: 0a49b806d60584a287f2238e1b2e7c138cb070771d36f1916a56a2b194320d6a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.3_CsCoBr3.mcif.