Research/Sitter/MAGNDATA / 0.1152_Bi2CoO2F4.mcif

Bi₂Co₁O₂F₄

MAGNDATA entry 0.1152 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

Structure · 10 properties

Magnetic group	P c′ a′ 2₁ BNS 29.103
Point group	m′m′2
Parent space group	P 2₁ a b No. 29
Spins	coplanar · net moment 2.8 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.4317 · b 5.4313 · c 16.348 Å · α 90° · β 90° · γ 90°
Measured at	5 K
Magnetic ions	Co
Largest moment component	2.37 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 P c′ a′ 2₁ →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Bi1	Bi	0.006	0.01	0.078
Bi2	Bi	0.508	0.009	0.5767
Co1	Co	0	0.98	0.748	0.7	−2.37	0	2.4712
F1	F	0.207	0.29	0.7847
F2	F	0.805	0.198	0.2712
F3	F	0.024	0.928	0.873
F4	F	0.519	0.933	0.374
O1	O	0.252	0.241	0.9941
O2	O	0.743	0.254	0.4991

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

Euan A. S. Scott et al. Chem. Mater. (2022) · doi:10.1021/acs.chemmater.2c02745

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1152_Bi2CoO2F4.mcif from MAGNDATA · entry page

sha256 of this copy: 856ce3a54dca1b931405ddfa6eeacaa4ee0cfe43748641c6ab4826062749595f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1152_Bi2CoO2F4.mcif.

Bi2Co1O2F4

Symmetry

Source

Original file

Bi₂Co₁O₂F₄