Research/Sitter/MAGNDATA / 0.108_Mn3Ir.mcif

Mn₃Ir

MAGNDATA entry 0.108 · 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 ≤ 960 K (687 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	R 3m′ BNS 166.101
Point group	3m′
Parent space group	P m 3m No. 221
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.77 · b 3.77 · c 3.77 Å · α 90° · β 90° · γ 90°
Transition	960 K (687 °C)
Measured at	300 K
Magnetic ions	Mn
Largest moment component	2 μ_B
Method	NSD

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 R 3m′ →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ir1	Ir	0	0	0
Mn1	Mn	0	0.5	0.5	2	−1	−1	2.4495

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

I. Tomeno et al. Journal of Applied Physics (1999) · doi:10.1063/1.371298

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.108_Mn3Ir.mcif from MAGNDATA · entry page

sha256 of this copy: 28d119b570d463e654480f47370a78028ac340b96315cb6645acd517ab0fd844
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.108_Mn3Ir.mcif.