Research/Sitter/MAGNDATA / 0.1000_Fe4O5.mcif

Fe₄O₅

MAGNDATA entry 0.1000 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 150 K (−123 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁′ BNS 4.9
Point group	2′
Parent space group	C m c m No. 63
Spins	coplanar · net moment 17.6 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 2.8906 · b 9.8024 · c 12.5804 Å · α 90° · β 90° · γ 90°
Transition	150 K (−123 °C)
Measured at	10 K
Magnetic ions	Fe
Largest moment component	3.4 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′ →

Atom sites · 9 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0.5052	0.25	−1.7	0	−3.4	3.8013
Fe2	Fe	0	0	1.7	0	3.4	3.8013
Fe3_1	Fe	0.2604	0.1174	2.2	0	3.4	4.0497
Fe3_2	Fe	0.2604	0.3826	2.2	0	3.4	4.0497
O1_1	O	0.359	0.5442
O1_2	O	0.359	0.9558
O2	O	0.1601	0.25
O3_1	O	0.093	0.6422
O3_2	O	0.093	0.8578

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

S. V. Ovsyannikov et al. Nature Chemistry (2016) · doi:10.1038/nchem.2478

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1000_Fe4O5.mcif from MAGNDATA · entry page

sha256 of this copy: 93f95002cb971e18d9b04946b1172db21339a3f37757241094d704d19b84dd0f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1000_Fe4O5.mcif.