Research/Sitter/MAGNDATA / 1.171_Tb2Fe2Si2C.mcif

Tb₂Fe₂Si₂C

MAGNDATA entry 1.171 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 44 K (−229 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_c 2/m BNS 12.63
Point group	2/m1′
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 10.6106 · b 3.9322 · c 13.5118 Å · α 90° · β 129.33° · γ 90°
Transition	44 K (−229 °C)
Measured at	3 K
Magnetic ions	Tb
Largest moment component	8 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_c 2/m →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0.201	0	0.0475
Tb1	Tb	0.5613	0	0.1465	0	8	0	8
C1	C	0	0.5	0.25
Si1	Si	0.161	0	0.357

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. Susilo et al. Journal of Alloys and Compounds (2016) · doi:10.1016/j.jallcom.2015.09.092

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.171_Tb2Fe2Si2C.mcif from MAGNDATA · entry page

sha256 of this copy: e0bcbb2a672b9167b074a8f11035bdb2fa879c321a6fd998073db446a0bfec2f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.171_Tb2Fe2Si2C.mcif.