Research/Sitter/MAGNDATA / 0.1195_NiFe2O4.mcif

NiFe₂O₄

MAGNDATA entry 0.1195 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹m¹3̄¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

Structure · 10 properties

Magnetic group	R 3 m′ BNS 166.101
Point group	3m′
Parent space group	F d 3 m No. 227
Spins	collinear · net moment 41.569 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 8.3574 · b 8.3574 · c 8.3574 Å · α 90° · β 90° · γ 90°
Measured at	300 K
Magnetic ions	Fe, Ni
Largest moment component	2.1 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 R 3 m′ →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ni1	Ni	0.125	0.125	0.125	−2.1	−2.1	−2.1	3.6373
Fe1	Fe	0.125	0.125	0.125	−2.1	−2.1	−2.1	3.6373
Ni2_1	Ni	0	0	0.5	1.8	1.8	1.8	3.1177
Fe2_1	Fe	0	0	0.5	1.8	1.8	1.8	3.1177
Ni2_2	Ni	0	0.25	0.75	1.8	1.8	1.8	3.1177
Fe2_2	Fe	0	0.25	0.75	1.8	1.8	1.8	3.1177
O1	O	0.0084	0.0084	0.2416
O2	O	0.2416	0.2416	0.2416

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

Henrik L. Andersen et al. CrystEngComm (2025) · doi:10.1039/d4ce01001a

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1195_NiFe2O4.mcif from MAGNDATA · entry page

sha256 of this copy: 8dda371cea90ba078d919e3c7bc9dd1ffee77f73dbdf8e163f86608b5187ba13
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1195_NiFe2O4.mcif.