Research/Sitter/MAGNDATA / 0.578_NaBaFe2F9.mcif

NaBaFe₂F₉

MAGNDATA entry 0.578 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 19 K (−254 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁/c BNS 14.75
Parent space group	P 2₁/c No. 14
Spins	noncoplanar · net moment 1.4 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.3236 · b 17.4525 · c 5.4586 Å · α 90° · β 91.84° · γ 90°
Transition	19 K (−254 °C)
Measured at	4.5 K
Magnetic ions	Fe
Largest moment component	2.64 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 2₁/c →

Atom sites · 13 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0.4092	0.6249	0.2309	2.49	0.02	−2.51	3.5919
Fe2	Fe	0.2698	0.4196	0.262	−2.64	0.33	2.36	3.6122
Na1	Na	0.3011	0.0377	0.7557
Ba1	Ba	0.0602	0.2856	0.7331
F1	F	0.1383	0.4196	0.9571
F2	F	0.9995	0.9226	0.4164
F3	F	0.2811	0.3111	0.2956
F4	F	0.4423	0.9193	0.0423
F5	F	0.2773	0.1651	0.4881
F6	F	0.2086	0.1648	0.994
F7	F	0.2401	0.031	0.2455
F8	F	0.4333	0.2914	0.8135
F9	F	0.4	0.4317	0.5777

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

A. de Kozak et al. Solid State Communications (1985) · doi:10.1016/0038-1098(85)90200-5

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.578_NaBaFe2F9.mcif from MAGNDATA · entry page

sha256 of this copy: 5fb8426c7db0218ce3367dcb93668028999c9f0b872634d4515f8ac3173fdf0b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.578_NaBaFe2F9.mcif.