Research/Sitter/MAGNDATA / 1.697_Tb5Pd2In4.mcif

Tb₅Pd₂In₄

MAGNDATA entry 1.697 · 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 ≤ 60 K (−213 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_b m c 2₁ BNS 26.72
Point group	mm21′
Parent space group	P b a m No. 55
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 18.1642 · b 16.0076 · c 3.6467 Å · α 90° · β 90° · γ 90°
Transition	60 K (−213 °C)
Measured at	39.7 K
Magnetic ions	Tb
Largest moment component	7.4 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_b m c 2₁ →

Atom sites · 11 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tb1	Tb	0	0	0	0	0	7.4	7.4
Tb2_1	Tb	0.2178	0.1205	0
Tb2_2	Tb	0.7822	0.8796	0
Tb3_1	Tb	0.42	0.0592	0	0	0	7	7
Tb3_2	Tb	0.58	0.9408	0	0	0	−7	7
Pd1_1	Pd	0.3022	0.0116	0.5
Pd1_2	Pd	0.6978	0.9884	0.5
In1_1	In	0.5697	0.1041	0.5
In1_2	In	0.4303	0.8959	0.5
In2_1	In	0.8504	0.0378	0.5
In2_2	In	0.1496	0.9622	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

S. Baran et al. J. Alloys Compd. (2021) · doi:10.1016/j.jallcom.2021.160171

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.697_Tb5Pd2In4.mcif from MAGNDATA · entry page

sha256 of this copy: a043d853907fbdea35a608b06095a95fe818c8596f474f9cdedb21d926b01c15
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.697_Tb5Pd2In4.mcif.