Research/Sitter/MAGNDATA / 0.583_Fe2F5(H2O)2.mcif

Fe₂F₅(H₂O)₂

MAGNDATA entry 0.583 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 48 K (−225 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I m m′ a′ BNS 74.559
Parent space group	I m m a No. 74
Spins	coplanar · net moment 2.88 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.469 · b 10.927 · c 6.602 Å · α 90° · β 90° · γ 90°
Transition	48 K (−225 °C)
Measured at	30 K
Magnetic ions	Fe
Largest moment component	3.52 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 I m m′ a′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0	0	−3.52	−1.6	3.8666
Fe2	Fe	0.25	0.25	0.25	0	2.8	0	2.8
F1	F	0.2034	0.1257	0.0496
F2	F	0	0.25	0.3368
O1	O	0	0.0658	0.6994
H1	H	0.3941	0.5878	0.1188

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

Y Laligant et al. J. Phys. C: Solid State Phys. (1986) · doi:10.1088/0022-3719/19/8/007

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.583_Fe2F5(H2O)2.mcif from MAGNDATA · entry page

sha256 of this copy: 876ccd7f86a2cde59d25e7b4d1c059bd86f9f108467ef1e66c7db6d9fa94fc04
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.583_Fe2F5(H2O)2.mcif.