Research/Sitter/MAGNDATA / 1.277_LiFeCr4O8.mcif

LiFeCr₄O₈

MAGNDATA entry 1.277 · 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.

ordered ≤ 94 K (−179 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4 m′ 2′ BNS 119.319
Parent space group	F 4 3 m No. 216
Spins	collinear · net moment 5.68 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 8.2778 · b 8.2778 · c 8.2778 Å · α 90° · β 90° · γ 90°
Transition	94 K (−179 °C)
Measured at	30 K
Magnetic ions	Cr, Fe
Largest moment component	2.54 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 4 m′ 2′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1	Li	0	0	0
Fe1	Fe	0.75	0.75	0.75	0	0	−2.54	2.54
Cr1	Cr	0.3726	0.3726	0.3726	0	0	0.28	0.28
O1	O	0.1372	0.1372	0.1372
O2	O	0.6171	0.6171	0.6171

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

R. Saha et al. PHYSICAL REVIEW B (2017) · doi:10.1103/PhysRevB.96.214439

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.277_LiFeCr4O8.mcif from MAGNDATA · entry page

sha256 of this copy: cad23fe13b44db56f86fe0a92540d0828a159879f31cb7ea050271c2b397ab1c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.277_LiFeCr4O8.mcif.