Research/Sitter/MAGNDATA / 1.415_Tb2Pd2In.mcif

Tb₂Pd₂In

MAGNDATA entry 1.415 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 29.5 K (−244 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_a m c a BNS 64.479
Parent space group	P 4/m b m No. 127
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/4 1/4 1/2] 1k
Cell	a 30.6544 · b 30.6544 · c 7.4478 Å · α 90° · β 90° · γ 90°
Transition	29.5 K (−244 °C)
Measured at	1.7 K
Magnetic ions	Tb
Largest moment component	8.7 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_a m c a →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tb1_1	Tb	0.0435	0.1685	0.25	0	0	−8.7	8.7
Tb1_2	Tb	0.9565	0.0815	0.25	0	0	8.7	8.7
Tb1_3	Tb	0.0815	0.0435	0.25	0	0	−8.7	8.7
Pd1_1	Pd	0.0931	0.2181	0
Pd1_2	Pd	0.9069	0.0319	0
Pd1_3	Pd	0.0319	0.0931	0
In1_1	In	0	0	0
In1_2	In	0.125	0.125	0

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

S. Maskova-Cerna et al. J. Phys.: Condens. Matter (2020) · doi:10.1088/1361-648X/ab8428

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.415_Tb2Pd2In.mcif from MAGNDATA · entry page

sha256 of this copy: 9f8122bd78a456d1761784ed8836fa9ebff703de9da5ef93591bc5925a1fe1a0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.415_Tb2Pd2In.mcif.