Research/Sitter/MAGNDATA / 0.412_Tb5Ge4.mcif

Tb₅Ge₄

MAGNDATA entry 0.412 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 91 K (−182 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n m′ a BNS 62.444
Parent space group	P n m a No. 62
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.6308 · b 14.6738 · c 7.6994 Å · α 90° · β 90° · γ 90°
Transition	91 K (−182 °C)
Measured at	85 K
Magnetic ions	Tb
Largest moment component	4.57 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 m′ a →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tb1	Tb	0.288	0.25	−0.0002	0	0	4.57	4.57
Tb2	Tb	0.9709	0.1017	0.822	0.3	0.2	3	3.0216
Tb3	Tb	0.1185	0.1158	0.3386	1.3	1	3.3	3.6851
Ge1	Ge	0.9114	0.25	0.1123
Ge2	Ge	0.1686	0.25	0.636
Ge3	Ge	0.2222	0.9561	0.5274

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

C. Ritter et al. PHYSICAL REVIEW B (2002) · doi:10.1103/PhysRevB.65.094405

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.412_Tb5Ge4.mcif from MAGNDATA · entry page

sha256 of this copy: 079ddcfbefea9763214c8a856c3c630df697bf7b740f970b946eb3f337a9056b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.412_Tb5Ge4.mcif.