Research/Sitter/MAGNDATA / 0.655_HoMn0.9Fe0.1O3.mcif

HoMn_0.9Fe_0.1O₃

MAGNDATA entry 0.655 · source

noncoplanar magnet

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

ordered ≤ 55 K (−218 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 6₃′ c m′ BNS 185.200
Point group	6′mm′
Parent space group	P 6₃ c m No. 185
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.142 · b 6.142 · c 11.432 Å · α 90° · β 90° · γ 120°
Transition	55 K (−218 °C)
Measured at	2 K
Magnetic ions	Fe, Ho, Mn
Largest moment component	3.4 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 6₃′ c m′ →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0	0	0.285	0	0	3.4	3.4
Ho2	Ho	0.3333	0.6667	0.24	0	0	−1.3	1.3
Mn1	Mn	0.326	0	0	2.79	0	0	2.79
Fe1	Fe	0.326	0	0	2.79	0	0	2.79
O1	O	0.305	0	0.167
O2	O	0.644	0	0.341
O3	O	0	0	0.485
O4	O	0.3333	0.6667	0.023

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. Prakash et al. J. Phys.: Condens. Matter (2021) · doi:10.1088/1361-648X/abde66

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.655_HoMn0.9Fe0.1O3.mcif from MAGNDATA · entry page

sha256 of this copy: 91a633f507cae6ad826cc4d8e1df0c20aaeed450db990bd8dea9c3586b16d11b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.655_HoMn0.9Fe0.1O3.mcif.