Research/Sitter/MAGNDATA / 0.552_Pb2MnO4.mcif

Pb₂MnO₄

MAGNDATA entry 0.552 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 18 K (−255 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 4′ 2₁ c′ BNS 114.278
Parent space group	P 4 2₁ c No. 114
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 12.7803 · b 12.7803 · c 5.1242 Å · α 90° · β 90° · γ 90°
Transition	18 K (−255 °C)
Measured at	1.5 K
Magnetic ions	Mn
Largest moment component	1.94 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 4′ 2₁ c′ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pb1	Pb	0.078	0.1231	0.2459
Pb2	Pb	0.0075	0.3304	0.794
Mn1	Mn	0.3072	0.2706	0.2572	1.94	1.94	0	2.7436
O1	O	0.3155	0.4143	0.156
O2	O	0.2802	0.1405	0.4355
O3	O	0.3252	0.7567	0.4241
O4	O	0.2703	0.5581	0.5993

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

S. A. J. Kimber et al. J. Mater. Chem. (2007) · doi:10.1039/B704361A

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.552_Pb2MnO4.mcif from MAGNDATA · entry page

sha256 of this copy: df874fe7a68728d5392b87b2fda51ee5033b359a6307dfc8aa7ef4373ec5dc93
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.552_Pb2MnO4.mcif.