Research/Sitter/MAGNDATA / 2.5_Mn3CuN.mcif

Mn₃CuN

MAGNDATA entry 2.5 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 143 K (−130 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 4/n BNS 85.59
Point group	4/m
Parent space group	P m 3m No. 221
Spins	noncoplanar · net moment 2.1 μ_B per cell
Propagation	[1/2 1/2 0] · [0 0 0] 2k
Cell	a 5.5239 · b 5.5239 · c 3.906 Å · α 90° · β 90° · γ 90°
Transition	143 K (−130 °C)
Magnetic ions	Mn
Largest moment component	2.55 μ_B
Method	Unspecified neutron diffraction technique.

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 4/n →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1	Cu	0	0.5	0
Mn1_1	Mn	0.75	0.75	0.5	−2.55	−1.27	0.2	2.8558
Mn1_2	Mn	0	0	0	0	0	0.65	0.65
N1	N	0	0	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

Fruchart, D. et al. Journal of the Physical Society of Japan (1978) · doi:10.1143/JPSJ.44.781

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.5_Mn3CuN.mcif from MAGNDATA · entry page

sha256 of this copy: 270b7e7448994020dfb97d644afa5f15a64944045cda123ed614fb7256e74a18
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.5_Mn3CuN.mcif.