Research/Sitter/MAGNDATA / 0.24_LiMnPO4.mcif

LiMnPO₄

MAGNDATA entry 0.24 · 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 ≤ 33.9 K (−239 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P n′ m′ a′ BNS 62.449
Point group	m′m′m′
Parent space group	P n m a No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.46 · b 6.1 · c 4.744 Å · α 90° · β 90° · γ 90°
Transition	33.85 K (−239 °C)
Measured at	2 K
Magnetic ions	Mn
Largest moment component	3.9 μ_B
Method	NSD

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 · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1	Li	0	0	0
Mn1	Mn	0.7183	0.75	0.0281	−3.9	0	0	3.9
P1	P	0.9077	0.75	0.5919
O1	O	0.9032	0.75	0.2664
O2	O	0.5439	0.75	0.7927
O3	O	0.8391	0.9508	0.7219

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

R. Toft-Petersen et al. PHYSICAL REVIEW B (2012) · doi:10.1103/physrevb.85.224415

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.24_LiMnPO4.mcif from MAGNDATA · entry page

sha256 of this copy: 965b3e9cdfa818cbaed5cde524bc8db0f72f99b010eda79d75842ecf657fcaa1
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.24_LiMnPO4.mcif.