Research/Sitter/MAGNDATA / 2.57_TbMn2Si2.mcif

TbMn₂Si₂

MAGNDATA entry 2.57 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

Structure · 9 properties

Magnetic group	P m m′ n′ BNS 59.410
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 14.4 μ_B per cell
Propagation	[0 0 0] · [1 1 1] 2k
Cell	a 3.931 · b 3.931 · c 10.456 Å · α 90° · β 90° · γ 90°
Measured at	4.2 K
Magnetic ions	Mn, Tb
Largest moment component	8.9 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′ n′ →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tb1	Tb	0	0	0	0	−8.9	8.9
Mn1	Mn	0.5	0.25	0	1.27	0.85	1.5282
Si1	Si	0	0.375

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

E. Gerasimov et al. Journal of Alloys and Compounds (2018) · doi:10.1016/j.jallcom.2017.10.050

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.57_TbMn2Si2.mcif from MAGNDATA · entry page

sha256 of this copy: 8966110286a49b4ea30c4581af87f7421b6907589cfeef30108a7158808128a7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.57_TbMn2Si2.mcif.