Research/Sitter/MAGNDATA / 0.228_TbCo2.mcif

TbCo₂

MAGNDATA entry 0.228 · source

s-wave ferromagnet

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

Spin group ¹3̄¹m: 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 · 10 properties

Magnetic group	R 3 m′ BNS 166.101
Parent space group	Fd 3 m No. 227
Spins	collinear · net moment 64.41 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.0824 · b 5.0824 · c 12.5351 Å · α 90° · β 90° · γ 120°
Transition	240 K (−33 °C)
Measured at	14 K
Magnetic ions	Co, Tb
Largest moment component	8.3 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 R 3 m′ →

Atom sites · 3 sites · CSV

site	element	x	z	m_c	\|m\| (μ_B)
Tb1	Tb	0	0.1264	8.3	8.3
Co1	Co	0	0.5	1.3	1.3
Co2	Co	0.5	0	1.19	1.19

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

Z. Ouyang et al. Journal of Alloys and Compounds (2005) · doi:10.1016/j.jallcom.2004.08.028

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.228_TbCo2.mcif from MAGNDATA · entry page

sha256 of this copy: ed3d8f9734f045f484a7f783c645976118673b2cc437acd42e9c532ca1b267c2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.228_TbCo2.mcif.