Research/Sitter/MAGNDATA / 0.864_La2NiIrO6.mcif

La₂Ni₁Ir₁O₆

MAGNDATA entry 0.864 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 75 K (−198 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁/c BNS 14.75
Point group	2/m
Parent space group	P 2₁/n No. 14
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.5666 · b 5.6314 · c 7.8931 Å · α 90° · β 90.04° · γ 90°
Transition	75 K (−198 °C)
Measured at	3 K
Magnetic ions	Ir, Ni
Largest moment component	1.25 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 · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ni1	Ni	0	0	0.5	1.25	0	0.8	1.4836
Ir2	Ir	0	0	0.5
Ir1	Ir	0	0	0	0.29	0	−0.6	0.6666
Ni2	Ni	0	0	0
La1	La	0.9912	0.4556	0.25
O1	O	0.0834	0.018	0.2497
O2	O	0.2061	0.28	0.9517
O3	O	0.2865	0.8008	0.9615

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. Acta Materialia (2021)

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.864_La2NiIrO6.mcif from MAGNDATA · entry page

sha256 of this copy: 720cba2b9a467ba5da37a10065bdfeac795ee220cda37bbef7cc2ca510ff7618
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.864_La2NiIrO6.mcif.

La2Ni1Ir1O6

Symmetry

Source

Original file

La₂Ni₁Ir₁O₆