Research/Sitter/MAGNDATA / 0.885_Mn1.17Co1.60Cu0.23O4.mcif

Mn_1.17Co_1.60Cu_0.23O₄

MAGNDATA entry 0.885 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 164 K (−109 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I 4₁/a m′ d′ BNS 141.557
Point group	4/mm′m′
Parent space group	I 4₁/a m d No. 141
Spins	noncoplanar · net moment 11.12 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.8443 · b 5.8443 · c 8.2374 Å · α 90° · β 90° · γ 90°
Transition	164 K (−109 °C)
Measured at	1.7 K
Magnetic ions	Co, Cu, Mn
Largest moment component	3.64 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 I 4₁/a m′ d′ →

Atom sites · 5 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0.25	0.375	0	0	−2.25	2.25
Cu1	Cu	0.25	0.375	0	0	−2.25	2.25
Mn1	Mn	0	0	0	0.55	3.64	3.6813
Co2	Co	0	0
O1	O	0.5257	0.2417

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. Pramanik et al. PHYSICAL REVIEW MATERIALS (2022) · doi:10.1103/PhysRevMaterials.6.034407

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.885_Mn1.17Co1.60Cu0.23O4.mcif from MAGNDATA · entry page

sha256 of this copy: 95c599db09efbd3e41da600cb93dd7bc0558668690c79feaac2d5535860ff2ca
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.885_Mn1.17Co1.60Cu0.23O4.mcif.