Research/Sitter/MAGNDATA / 1.505_GdAgSn.mcif

GdAgSn

MAGNDATA entry 1.505 · 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 ≤ 34 K (−239 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_C n a 2₁ BNS 33.154
Parent space group	P 6₃ m c No. 186
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 9.416 · b 4.708 · c 7.395 Å · α 90° · β 90° · γ 120°
Transition	34 K (−239 °C)
Measured at	4 K
Magnetic ions	Gd
Largest moment component	7.2 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_C n a 2₁ →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Gd1	Gd	0	0	0	0	0	7.2	7.2
Ag1	Ag	0.1667	0.6667	0.806
Sn1	Sn	0.1667	0.6667	0.216

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

H. Ryan et al. J. Phys.: Condens. Matter (2017) · doi:10.1088/1361-648X/aa977a

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.505_GdAgSn.mcif from MAGNDATA · entry page

sha256 of this copy: d59f6456db902d70065aef739869fb28e4f7719fb3bb1aa185ca6ae1c4f2cec9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.505_GdAgSn.mcif.