Research/Sitter/MAGNDATA / 1.122_Cu3Bi(SeO3)2O2Br.mcif

Cu₃Bi(SeO₃)₂O₂Br

MAGNDATA entry 1.122 · 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 ≤ 27.4 K (−246 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_c c c n BNS 56.373
Point group	mmm1′
Parent space group	P m m n No. 59
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 6.39 · b 9.694 · c 14.574 Å · α 90° · β 90° · γ 90°
Transition	27.4 K (−246 °C)
Measured at	6.5 K
Magnetic ions	Cu
Largest moment component	0.9 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_c c c n →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Bi1	Bi	0.25	0.25	0.1201
Se1	Se	0.25	0.5565	0.3058
Cu1	Cu	0	0	0	0	−0.72	−0.57	0.9183
Cu2	Cu	0.25	0.25	0.3963	0	0	0.9	0.9
Br1	Br	0.25	0.75	0.079
O1	O	0.25	0.1138	0.4958
O2	O	0.041	0.5836	0.3779
O3	O	0.25	0.1159	0.2949

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. Pregelj et al. PHYSICAL REVIEW B (2012) · doi:10.1103/PhysRevB.86.144409

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.122_Cu3Bi(SeO3)2O2Br.mcif from MAGNDATA · entry page

sha256 of this copy: bb3c8853447cdf6bd053a26c8557debbea111be7b366ccf9359bd882d4e11604
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.122_Cu3Bi(SeO3)2O2Br.mcif.