Research/Sitter/MAGNDATA / 0.965_LuFe2O4.mcif

Lu₁Fe₂O₄

MAGNDATA entry 0.965 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 380 K (107 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 1.3
Point group	11′
Parent space group	P m No. 6
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 5.8045 · b 6.5804 · c 16.665 Å · α 90° · β 100.27° · γ 90°
Transition	380 K (107 °C)
Measured at	310 K
Magnetic ions	Fe
Largest moment component	4.88 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_S 1 →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Lu1	Lu	0	0	0
Lu2	Lu	0.548	0.25	0.069
Fe1	Fe	0.879	0	0.2175	0.87	0	4.88	4.8018
Fe2	Fe	0.353	0	0.2155	0.87	0	4.88	4.8018
Fe3	Fe	0.211	0.25	0.3555	−0.87	0	−4.88	4.8018
Fe4	Fe	0.687	0.25	0.3425	−0.87	0	−4.88	4.8018
O1	O	0.9386	0	0.3428
O2	O	0.4638	0	0.3346
O3	O	0.8189	0	0.097
O4	O	0.3346	0	0.0987
O5	O	0.6297	0.25	0.2193
O6	O	0.154	0.25	0.2273
O7	O	0.7618	0.25	0.4617
O8	O	0.2499	0.25	0.4674

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

F. Damay et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.91.214111

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.965_LuFe2O4.mcif from MAGNDATA · entry page

sha256 of this copy: 67cbe65427e0dfba7c1ff1dd874a2350e58f939fc71418bd2d9bc09cd26fe9e7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.965_LuFe2O4.mcif.

Lu1Fe2O4

Symmetry

Source

Original file

Lu₁Fe₂O₄