Research/Sitter/MAGNDATA / 0.884_Mn1.15Co1.85O4.mcif

Mn_1.15Co_1.85O₄

MAGNDATA entry 0.884 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 184 K (−89 °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 15.92 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.8526 · b 5.8526 · c 8.2582 Å · α 90° · β 90° · γ 90°
Transition	184 K (−89 °C)
Measured at	1.7 K
Magnetic ions	Co, Mn
Largest moment component	3.51 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 · 4 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0.25	0.375	0	0	−3.04	3.04
Mn1	Mn	0	0	0	0.55	3.51	3.5528
Co2	Co	0	0
O1	O	0.5273	0.2409

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

⬇ 0.884_Mn1.15Co1.85O4.mcif from MAGNDATA · entry page

sha256 of this copy: 2a55bdd192fcdc762c25cce4b1c46987eb8ce8d029ec7c50150ad1600edea4fd
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.884_Mn1.15Co1.85O4.mcif.