Research/Sitter/MAGNDATA / 0.47_Gd2Sn2O7.mcif

Gd₂Sn₂O₇

MAGNDATA entry 0.47 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 1 K (−272 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I 4₁′/a m d′ BNS 141.555
Point group	4′/mm′m
Parent space group	F d 3m No. 227
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.4544 · b 10.4544 · c 10.4544 Å · α 90° · β 90° · γ 90°
Transition	1 K (−272 °C)
Measured at	0.1 K
Magnetic ions	Gd
Largest moment component	4.3 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 I 4₁′/a m d′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Gd1	Gd	0.5	0.5	0.5	4.3	−4.3	0	6.0811
Sn1	Sn	0	0	0
O1_1	O	0.3348	0.125	0.125
O1_2	O	0.125	0.125	0.3348
O2	O	0.375	0.375	0.375

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.S. Wills et al. J. Phys.: Condens. Matter (2006) · doi:10.1088/0953-8984/18/3/l02

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.47_Gd2Sn2O7.mcif from MAGNDATA · entry page

sha256 of this copy: 91f6348e83012598a2f998c8e4a6ff3a16a6b59ea6398801556a57b66b75082b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.47_Gd2Sn2O7.mcif.