Research/Sitter/MAGNDATA / 0.436_TbNi4Si.mcif

TbNi₄Si

MAGNDATA entry 0.436 · 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 ¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 37 K (−236 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C m m′ m′ BNS 65.486
Parent space group	C m m m No. 65
Spins	collinear · net moment 17.32 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.0481 · b 8.2048 · c 3.9422 Å · α 90° · β 90° · γ 90°
Transition	37 K (−236 °C)
Measured at	1.5 K
Magnetic ions	Ni, Tb
Largest moment component	8.66 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 C m m′ m′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tb1	Tb	0	0	0	0	8.66	0	8.66
Ni1	Ni	0	0.3403	0
Ni2	Ni	0.25	0.25	0.5
Si1	Si	0.5	0	0.5

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

A. Morozkin et al. Journal of Magnetism and Magnetic Materials (2014) · doi:10.1016/j.jmmm.2014.04.057

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.436_TbNi4Si.mcif from MAGNDATA · entry page

sha256 of this copy: d8cb8883db159e7e97c6e494115d0ff221be2ac73b42554dbc05e5107677cd23
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.436_TbNi4Si.mcif.