Research/Sitter/MAGNDATA / 0.333_Mn2Mo3O8.mcif

Mn₂Mo₃O₈

MAGNDATA entry 0.333 · source

s-wave compensated ferrimagnet

Opposite moments cancel, but the two sublattices aren't related by any symmetry, so the bands split like a ferromagnet's (s-wave).

Spin group ¹6/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 39 K (−234 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 6₃ m′ c′ BNS 186.207
Parent space group	P 6₃ m c No. 186
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.7988 · b 5.7988 · c 10.268 Å · α 90° · β 90° · γ 120°
Transition	39 K (−234 °C)
Measured at	4.2 K
Magnetic ions	Mn
Largest moment component	4.3 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 m′ c′ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.3333	0.6667	0.96	0	0	4.3	4.3
Mn2	Mn	0.3333	0.6667	0.51	0	0	−4.3	4.3
Mo1	Mo	0.147	0.853	0.25
O1	O	0	0	0.381
O2	O	0.3333	0.6667	0.162
O3	O	0.489	0.511	0.358
O4	O	0.16	0.84	0.631

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

D. Bertrand et al. J. Physique (1975) · doi:10.1051/jphys:01975003605037900

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.333_Mn2Mo3O8.mcif from MAGNDATA · entry page

sha256 of this copy: 806b8c72496c6fa0ea899413c1781c5bd5e4ffafb0a6f362f3b14dc85f5453ea
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.333_Mn2Mo3O8.mcif.