Research/Sitter/MAGNDATA / 0.862_Eu2Ir2O7.mcif

Eu₂Ir₂O₇

MAGNDATA entry 0.862 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 120 K (−153 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	F d 3 m′ BNS 227.131
Point group	m3m′
Parent space group	F d 3 m No. 227
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.2857 · b 10.2857 · c 10.2857 Å · α 90° · β 90° · γ 90°
Transition	120 K (−153 °C)
Measured at	1.5 K
Magnetic ions	Ir
Largest moment component	0.2 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 F d 3 m′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1	Eu	0.5	0.5	0.5
Ir1	Ir	0	0	0	0.2	0.2	0.2	0.3464
O1	O	0.336	0.125	0.125
O2	O	0.375	0.375	0.375

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

M. Das et al. PHYSICAL REVIEW B (2022) · doi:10.1103/PhysRevB.105.134421

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.862_Eu2Ir2O7.mcif from MAGNDATA · entry page

sha256 of this copy: 1618415c6cefa719dfcc17b7c4ab2db178bef3a5135ffee03ba13f9de5db5be4
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.862_Eu2Ir2O7.mcif.