Research/Sitter/MAGNDATA / 0.140_LuFe4Ge2.mcif

LuFe₄Ge₂

MAGNDATA entry 0.140 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 32 K (−241 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P n′ n′ m′ BNS 58.399
Point group	m′m′m′
Parent space group	P 4₂/m n m No. 136
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.2884 · b 7.1048 · c 3.8689 Å · α 90° · β 90° · γ 90°
Transition	32 K (−241 °C)
Measured at	1.5 K
Magnetic ions	Fe
Largest moment component	0.4 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 n′ n′ m′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Lu1	Lu	0	0	0.5
Fe1_1	Fe	0.0961	0.3533	0	0.4	−0.2	0	0.4472
Fe1_2	Fe	0.1468	0.5868	0.5	−0.2	−0.4	0	0.4472
Ge1	Ge	0.2112	0.7805	0

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

P. Schobinger-Papamantellos et al. Journal of Magnetism and Magnetic Materials (2012) · doi:10.1016/j.jmmm.2012.05.058

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.140_LuFe4Ge2.mcif from MAGNDATA · entry page

sha256 of this copy: e90151b67195cd61eda76ab0bc2ae0222940b0a50682f64cbb1697e83eb8799d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.140_LuFe4Ge2.mcif.