Research/Sitter/MAGNDATA / 1.280_Yb2Cu2O5.mcif

Yb₂Cu₂O₅

MAGNDATA entry 1.280 · 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 ≤ 8.5 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a c BNS 7.27
Parent space group	P n a 2₁ No. 33
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 10.729 · b 6.871 · c 24.7062 Å · α 90° · β 90° · γ 90°
Transition	8.5 K (−265 °C)
Measured at	1.5 K
Magnetic ions	Cu, Yb
Largest moment component	1.2 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_a c →

Atom sites · 18 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Yb1_1	Yb	0.2088	0.1134	0	0.6	1.2	0	1.3416
Yb1_2	Yb	0.7912	0.8865	0.25	0.6	1.2	0	1.3416
Yb2_1	Yb	0.0416	0.1115	0.1652	−0.6	1.2	0	1.3416
Yb2_2	Yb	0.9584	0.8884	0.4152	−0.6	1.2	0	1.3416
Cu1_1	Cu	0.9907	0.3305	0.0565	0	−1.1	0	1.1
Cu1_2	Cu	0.0093	0.6695	0.3065	0	−1.1	0	1.1
Cu2_1	Cu	0.2608	0.3305	0.1085	0	−1.1	0	1.1
Cu2_2	Cu	0.7392	0.6695	0.3585	0	−1.1	0	1.1
O1_1	O	0.174	0.3645	0.1785
O1_2	O	0.826	0.6355	0.4285
O2_1	O	0.323	0.359	0.032
O2_2	O	0.677	0.641	0.282
O3_1	O	0.125	0.1565	0.0825
O3_2	O	0.875	0.8435	0.3325
O4_1	O	0.428	0.389	0.1315
O4_2	O	0.572	0.611	0.3815
O5_1	O	0.425	0.114	0.238
O5_2	O	0.575	0.886	0.488

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

J.L. Garcia-Muoz et al. Phys. Rev. B (1991) · doi:10.1103/PhysRevB.44.4716

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.280_Yb2Cu2O5.mcif from MAGNDATA · entry page

sha256 of this copy: 146cd43bb94cc1b47de8d8748de1e8d3abe8ea381b711d478acaf490990a4a8f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.280_Yb2Cu2O5.mcif.