Research/Sitter/MAGNDATA / 1.779_Sr2FeIrO6.mcif

Sr₂Fe₁Ir₁O₆

MAGNDATA entry 1.779 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 114 K (−159 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 2.7
Point group	11′
Parent space group	I 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 5.5745 · b 11.0938 · c 15.678 Å · α 90° · β 89.99° · γ 90°
Transition	114 K (−159 °C)
Measured at	2 K
Magnetic ions	Fe
Largest moment component	2.78 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_S 1 →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.5007	0	0.375
Fe1	Fe	0	0	0	2.78	0.4	0.1	2.8104
Ir1	Ir	0	0	0
Ir2	Ir	0	0	0.25
Fe2	Fe	0	0	0.25
O1	O	0.9573	0	0.1265
O2_1	O	0.2585	0.122	0.0107
O2_2	O	0.7415	0.122	0.9893

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

P. Kayser et al. Eur. J. Inorg. Chem. (2015) · doi:10.1002/ejic.201500569

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.779_Sr2FeIrO6.mcif from MAGNDATA · entry page

sha256 of this copy: af23438b9e0ef1e8b9a50bf8668a912714fdaed8a518f807bf1991e69d8afb3f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.779_Sr2FeIrO6.mcif.

Sr2Fe1Ir1O6

Symmetry

Source

Original file

Sr₂Fe₁Ir₁O₆