Research/Sitter/MAGNDATA / 0.508_FeMnO3.mcif

FeMnO₃

MAGNDATA entry 0.508 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹m¹3̄: each symmetry marked ¹ keeps every spin, ² swaps up and down.

Structure · 9 properties

Magnetic group	I b′ c′ a BNS 73.551
Parent space group	I a 3 No. 206
Spins	collinear · net moment 34.88 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 9.4108 · b 9.4108 · c 9.4108 Å · α 90° · β 90° · γ 90°
Measured at	300 K
Magnetic ions	Fe, Mn
Largest moment component	3.97 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 I b′ c′ a →

Atom sites · 11 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0.25	0.25	0.25	0	0	2.48	2.48
Mn1	Mn	0.25	0.25	0.25	0	0	−1	1
Fe2_1	Fe	0.9758	0	0.25	0	0	3.97	3.97
Fe2_2	Fe	0.25	0.9758	0	0	0	3.97	3.97
Fe2_3	Fe	0	0.25	0.9758	0	0	3.97	3.97
Mn2_1	Mn	0.9758	0	0.25	0	0	−3.01	3.01
Mn2_2	Mn	0.25	0.9758	0	0	0	−3.01	3.01
Mn2_3	Mn	0	0.25	0.9758	0	0	−3.01	3.01
O1_1	O	0.3351	0.1101	0.125
O1_2	O	0.125	0.3351	0.1101
O1_3	O	0.1101	0.125	0.3351

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. Rayaprol et al. AIP Conf. Proc. (2013) · doi:10.1063/1.4791446

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.508_FeMnO3.mcif from MAGNDATA · entry page

sha256 of this copy: 5c9c600d474bbdaed5556af8a9328287fe25983439a4e38b042e677254ca0435
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.508_FeMnO3.mcif.