Research/Sitter/MAGNDATA / 1.410_Sr2Fe1.9Cr0.1O5.mcif

Sr₂Fe_1.9Cr_0.1O₅

MAGNDATA entry 1.410 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 650 K (377 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_I m n a BNS 53.336
Parent space group	I c m m No. 74
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 1 1] 1k
Cell	a 5.6555 · b 15.6232 · c 5.5317 Å · α 90° · β 90° · γ 90°
Transition	650 K (377 °C)
Measured at	300 K
Magnetic ions	Cr, Fe
Largest moment component	3.9 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_I m n a →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.5111	0.6098	0
Fe1	Fe	0.5632	0.25	0.458	0	0	3.9	3.9
Fe2	Fe	0	0	0	0	0	3.2	3.2
Cr1	Cr	0	0	0	0	0	3.2	3.2
O1	O	0.75	0.4925	0.25
O2	O	0.048	0.1398	0
O3	O	0.6432	0.25	0.1339

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

F. Ramezanipour et al. J. Mater. Chem. (2012) · doi:10.1039/c2jm30957b

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.410_Sr2Fe1.9Cr0.1O5.mcif from MAGNDATA · entry page

sha256 of this copy: 06de92c1810c4f0ccb5130d3cf3d774227a0919ad2c12e84ddeff845549aaa04
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.410_Sr2Fe1.9Cr0.1O5.mcif.