Research/Sitter/MAGNDATA / 2.11_TbMg.mcif

TbMg

MAGNDATA entry 2.11 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 81 K (−192 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P m m′ a′ BNS 51.295
Point group	m′m′m
Parent space group	P m 3m No. 221
Spins	coplanar · net moment 10.4 μ_B per cell
Propagation	[0 0 0] · [0 0 1/2] 2k
Cell	a 3.778 · b 3.778 · c 7.556 Å · α 90° · β 90° · γ 90°
Transition	81 K (−192 °C)
Measured at	4.2 K
Magnetic ions	Tb
Largest moment component	5.2 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 m m′ a′ →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mg1	Mg	0.5	0.5	0.25
Tb1	Tb	0	0	0	5.18	0	5.2	7.3398

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

R. Aleonard et al. Solid State Commm. (1975) · doi:10.1016/0038-1098(75)90544-X

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.11_TbMg.mcif from MAGNDATA · entry page

sha256 of this copy: 1e1599ee07470adb47923a3fde2077279049e00ed305e4d8bfda23c3475e5b57
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.11_TbMg.mcif.