Research/Sitter/MAGNDATA / 1.0.7_LuFe2O4.mcif

LuFe₂O₄

MAGNDATA entry 1.0.7 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹2/¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 240 K (−33 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2′/m′ BNS 12.62
Point group	2′/m′
Parent space group	R 3m No. 166
Spins	collinear · net moment 81 μ_B per cell
Propagation	[1/3 1/3 0] · [0 0 0] 1k
Cell	a 10.3218 · b 10.3218 · c 25.28 Å · α 90° · β 90° · γ 120°
Transition	240 K (−33 °C)
Measured at	220 K
Magnetic ions	Fe
Largest moment component	4.5 μ_B
Method	NSD

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 C 2′/m′ →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Lu1_1	Lu	0	0	0
Lu1_2	Lu	0.2222	0.1111	0.3333
Fe1_1	Fe	0	0	0.2152	0	0	4.5	4.5
Fe1_2	Fe	0.2222	0.1111	0.5485	0	0	−4.5	4.5
O1_1	O	0	0	0.1281
O1_2	O	0.2222	0.1111	0.4614
O2_1	O	0	0	0.2926
O2_2	O	0.2222	0.1111	0.6259

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

A.D. Christianson et al. Phys. Rev. Lett. (2008) · doi:10.1103/physrevlett.100.107601

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.7_LuFe2O4.mcif from MAGNDATA · entry page

sha256 of this copy: 23db37e6e210997cf6c646cef2fc125f81ce76ce9b29c27a56a821e06b474430
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.7_LuFe2O4.mcif.