Research/Sitter/MAGNDATA / 0.44_YMnO3.mcif

YMnO₃

MAGNDATA entry 0.44 · 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 ≤ 66 K (−207 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 6₃′ BNS 173.131
Point group	6′
Parent space group	P 6₃c m No. 185
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.2 · b 6.2 · c 11.4 Å · α 90° · β 90° · γ 120°
Transition	66 K (−207 °C)
Magnetic ions	Mn
Largest moment component	3.43 μ_B
Method	polarized neutron diffraction - single crystal

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′ →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Y1	Y	0	0	0.2735
Y2_1	Y	0.3333	0.6667	0.2312
Y2_2	Y	0.3333	0.6667	0.7312
Mn1	Mn	0.3335	0	0	3.43	0.69	0	3.1423
O1	O	0.307	0	0.1621
O2	O	0.6409	0	0.3356
O3	O	0	0	0.9762
O4_1	O	0.3333	0.6667	0.0181
O4_2	O	0.3333	0.6667	0.5181

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.J. Brown et al. J. Phys.: Condens. Matter (2006) · doi:10.1088/0953-8984/18/44/008

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.44_YMnO3.mcif from MAGNDATA · entry page

sha256 of this copy: 66e71d601687fe833094ec57efef27cb2c58b1d0d3bc5f33488be1a4a0c11ff0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.44_YMnO3.mcif.