Research/Sitter/MAGNDATA / 0.74_Mn3Cu0.5Ge0.5N.mcif

Mn₃Cu_0.5Ge_0.5N

MAGNDATA entry 0.74 · 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 ≤ 380 K (107 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	R 3m BNS 166.97
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 3.906 · b 3.906 · c 3.906 Å · α 90° · β 90° · γ 90°
Transition	380 K (107 °C)
Measured at	15 K
Magnetic ions	Mn
Largest moment component	1.75 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 R 3m →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1	Cu	0	0	0
Mn1	Mn	0	0.5	0.5	0	−1.75	1.75	2.4749
N1	N	0.5	0.5	0.5

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

S. Iikubo et al. PHYSICAL REVIEW B (2008) · doi:10.1103/PhysRevB.77.020409

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.74_Mn3Cu0.5Ge0.5N.mcif from MAGNDATA · entry page

sha256 of this copy: 46902a1bf0453f90baf3e72148949223def86b81d0a2f856818c2855a06ac96c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.74_Mn3Cu0.5Ge0.5N.mcif.