Research/Sitter/MAGNDATA / 0.141_Tb5Ge4.mcif

Tb₅Ge₄

MAGNDATA entry 0.141 · 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 7.581 · b 14.565 · c 7.645 Å · α 90° · β 90° · γ 90°
Transition	91 K (−182 °C)
Measured at	4.2 K
Magnetic ions	Tb
Largest moment component	7.7 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	0.1358	0.1216	0.3438	1.2	1.1	6.9	7.0894
Tb2	Tb	0.9795	0.0889	0.8072	−4.3	2.6	6.7	8.375
Tb3	Tb	0.3162	0.25	0.9935	0.03	0	7.7	7.7001
Ge1	Ge	0.2206	0.9551	0.5312
Ge2	Ge	0.9132	0.25	0.1115
Ge3	Ge	0.1761	0.25	0.6333

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. J. Phys. Chem. Solids (1978) · doi:10.1016/0022-3697(78)90043-4

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.141_Tb5Ge4.mcif from MAGNDATA · entry page

sha256 of this copy: 24db8f9b958dffaa66adc29b1fbbd4906a5c2bdc7624794f582d574c83d2a540
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.141_Tb5Ge4.mcif.