Research/Sitter/MAGNDATA / 1.105_Gd2CuO4.mcif

Gd₂CuO₄

MAGNDATA entry 1.105 · 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 ≤ 18 K (−255 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_A c c n BNS 56.374
Point group	mmm1′
Parent space group	A e a m No. 64
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1 0] 1k
Cell	a 5.5 · b 5.5 · c 11.871 Å · α 90° · β 90° · γ 90°
Transition	18 K (−255 °C)
Magnetic ions	Cu
Largest moment component	1.2 μ_B
Method	NSD

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_A c c n →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Gd1	Gd	0	0	0.3493
Cu1	Cu	0	0	0	−0.2	−1.2	0	1.2166
O1	O	0.2725	0.2268	0
O2	O	0.25	0.2552	0.25

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

P.J. Brown et al. PHYSICAL REVIEW B (2011) · doi:10.1103/PhysRevB.84.054426

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.105_Gd2CuO4.mcif from MAGNDATA · entry page

sha256 of this copy: 70a01f6a7cad62bd8578df771462500e3e47ed55fb46af020ace4e116e5bc228
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.105_Gd2CuO4.mcif.