Research/Sitter/MAGNDATA / 0.584_Fe2F5(H2O)2.mcif

Fe₂F₅(H₂O)₂

MAGNDATA entry 0.584 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 26 K (−247 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C 2′/c′ BNS 15.89
Parent space group	I m m a No. 74
Spins	noncoplanar · net moment 3.77 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.47 · b 10.93 · c 6.603 Å · α 90° · β 90° · γ 90°
Transition	26 K (−247 °C)
Measured at	4.2 K
Magnetic ions	Fe
Largest moment component	3.73 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 C 2′/c′ →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0	1.6	−3.4	−1	3.8884
Fe2	Fe	0.25	0.25	0.25	−0.7	3.12	3.73	4.913
F1_1	F	0.2029	0.1252	0.0507
F1_2	F	0.7971	0.6252	0.9493
F2	F	0	0.25	0.3347
O1	O	0	0.0653	0.6974
H1_1	H	0.3933	0.5871	0.1207
H1_2	H	0.6067	0.0871	0.8793

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

⬇ 0.584_Fe2F5(H2O)2.mcif from MAGNDATA · entry page

sha256 of this copy: 514f3548d1ac85eceb323ff67fae08f07d7149ad097cd14a136ea16ebeab906d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.584_Fe2F5(H2O)2.mcif.