Research/Sitter/MAGNDATA / 1.443_Gd2BaCuO5.mcif

“Gd₂

MAGNDATA entry 1.443 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 6 K (−267 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a c a 2₁ BNS 29.104
Point group	mm21′
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 12.2185 · b 5.6779 · c 14.329 Å · α 90° · β 90° · γ 90°
Transition	6 K (−267 °C)
Measured at	1.3 K
Magnetic ions	Cu, Gd
Largest moment component	6.86 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_a c a 2₁ →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Gd1_1	Gd	0.2886	0.25	0.0578	−6.75	0	−1.295	6.8731
Gd1_2	Gd	0.2114	0.75	0.3078	−0.347	0	6.86	6.8688
Gd2_1	Gd	0.0738	0.25	0.1908	6.17	0	2.38	6.6131
Gd2_2	Gd	0.4262	0.75	0.4408	−2.56	0	−6.1	6.6154
Cu_1	Cu	0.6595	0.25	0.3564	0.272	0	−0.969	1.0065
Cu_2	Cu	0.8405	0.75	0.6065	−0.33	0	−0.95	1.0057
Ba1_1	Ba	0.9056	0.25	0.4657
Ba1_2	Ba	0.5944	0.75	0.7157
O1_1	O	0.4325	0.988	0.0853
O1_2	O	0.0675	0.012	0.3352
O2_1	O	0.2251	0.505	0.1725
O2_2	O	0.2749	0.495	0.4225
O3_1	O	0.094	0.25	0.0345
O3_2	O	0.406	0.75	0.2845

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. Yanda et al. PHYSICAL REVIEW RESEARCH (2020) · doi:10.1103/PhysRevResearch.2.023271

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.443_Gd2BaCuO5.mcif from MAGNDATA · entry page

sha256 of this copy: bef849ec8f65255f2c4e455de28834a82bda7c128630829fb9e0d54256639609
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.443_Gd2BaCuO5.mcif.

“Gd2

Symmetry

Source

Original file

“Gd₂