Research/Sitter/MAGNDATA / 0.648_(Ho0.8Mn0.2)MnO3.mcif

(Ho_0.8Mn_0.2)MnO₃

MAGNDATA entry 0.648 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 76 K (−197 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n m′ a′ BNS 62.447
Parent space group	P n m a No. 62
Spins	collinear · net moment 7.36 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.6329 · b 7.3908 · c 5.2461 Å · α 90° · β 90° · γ 90°
Transition	76 K (−197 °C)
Measured at	40 K
Magnetic ions	Ho, Mn
Largest moment component	2.2 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 P n m′ a′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0.0783	0.25	0.9834	−2.02	0	0	2.02
Mn1	Mn	0.0783	0.25	0.9834	−2.02	0	0	2.02
Mn2	Mn	0	0	0.5	2.2	0	0	2.2
O1	O	0.4619	0.25	0.1059
O2	O	0.3183	0.0534	0.6983

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

A. Donni et al. Journal of Alloys and Compounds (2021) · doi:10.1016/j.jallcom.2020.158230

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.648_(Ho0.8Mn0.2)MnO3.mcif from MAGNDATA · entry page

sha256 of this copy: a5fa81697771610c33f3a451da27e76326e7b2e19c2c24423aa8f83b7feb50cd
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.648_(Ho0.8Mn0.2)MnO3.mcif.