Research/Sitter/MAGNDATA / 0.574_MnFeF5(H2O)2.mcif

MnFeF₅(H₂O)₂

MAGNDATA entry 0.574 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 39.5 K (−234 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C 2′ BNS 5.15
Parent space group	I m m 2 No. 44
Spins	noncoplanar · net moment 11.564 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.475 · b 10.766 · c 6.594 Å · α 90° · β 90° · γ 90°
Transition	39.5 K (−234 °C)
Measured at	1.5 K
Magnetic ions	Fe, Mn
Largest moment component	4.59 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′ →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0.25	0.75	−4.59	0.86	−1.6	4.9364
Fe1	Fe	0.25	0	0	1.83	0	−2.9	3.4291
F1_1	F	0.291	0.873	0.198
F1_2	F	0.291	0.127	0.198
F2_1	F	0.709	0.626	0.302
F2_2	F	0.709	0.374	0.302
F3	F	0	0	0.073
F4	F	0	0.5	0.427
O1	O	0	0.821	0.445
O2	O	0	0.679	0.054
H1_1	H	0.101	0.84	0.363
H1_2	H	0.101	0.16	0.363
H2_1	H	0.897	0.66	0.138
H2_2	H	0.897	0.34	0.138

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. JOURNAL OF SOLID STATE CHEMISTRY (1987) · doi:10.1016/0022-4596(87)90193-9

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.574_MnFeF5(H2O)2.mcif from MAGNDATA · entry page

sha256 of this copy: 36a4db5751991c403a8d8584dd78a0359cb7cf76358881df2df8f624f6bd10d0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.574_MnFeF5(H2O)2.mcif.