Research/Sitter/MAGNDATA / 1.101_LuMnO3.mcif

LuMnO₃

MAGNDATA entry 1.101 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 40 K (−233 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_b m n 2₁ BNS 31.129
Point group	mm21′
Parent space group	P b n m No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 5.1896 · b 11.57 · c 7.2815 Å · α 90° · β 90° · γ 90°
Transition	40 K (−233 °C)
Measured at	8 K
Magnetic ions	Mn
Largest moment component	3.37 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_b m n 2₁ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Lu1_1	Lu	0.5191	0.2937	0.25
Lu1_2	Lu	0.4809	0.7063	0.75
Mn1	Mn	0.5	0	0	0	3.37	0	3.37
O1_1	O	0.3787	0.4789	0.25
O1_2	O	0.6213	0.5211	0.75
O2_1	O	0.6978	0.1648	0.0576
O2_2	O	0.3022	0.8351	0.5576

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

H. Okamoto et al. Solid State Communications (2008) · doi:10.1016/j.ssc.2008.01.036

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.101_LuMnO3.mcif from MAGNDATA · entry page

sha256 of this copy: a5721121bf026d3c54e63bd0c8fe0bfa34b809fc342be2c4de5f10c1a9fda023
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.101_LuMnO3.mcif.