Research/Sitter/MAGNDATA / 0.33_HoMnO3.mcif

HoMnO₃

MAGNDATA entry 0.33 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 25.4 K (−248 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 6₃c m BNS 185.197
Point group	6mm
Parent space group	P 6₃c m No. 185
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.1413 · b 6.1413 · c 11.4122 Å · α 90° · β 90° · γ 120°
Transition	25.4 K (−248 °C)
Measured at	1.7 K
Magnetic ions	Ho, Mn
Largest moment component	3.52 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 6₃c m →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0	0	0.2731
Ho2	Ho	0.3333	0.6667	0.2306	0	0	2.87	2.87
Mn1	Mn	0.3224	0	0	1.76	3.52	0	3.0484
O1	O	0.3054	0	0.16
O2	O	0.6433	0	0.3326
O3	O	0	0	0.4763
O4	O	0.3333	0.6667	0.017

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. Munoz et al. Chem. Mater. (2001) · doi:10.1021/cm0012264

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.33_HoMnO3.mcif from MAGNDATA · entry page

sha256 of this copy: ff4bf8681901ce9c9afa57707cd008dd5fcc3ac48f6e17fdc26bf441245b69c3
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.33_HoMnO3.mcif.