Research/Sitter/MAGNDATA / 0.670_Sr2YbRuO6.mcif

Sr₂YbRuO₆

MAGNDATA entry 0.670 · source

altermagnet

No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion.

Spin group ²2/²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 44 K (−229 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁/c BNS 14.75
Parent space group	P 2₁/n No. 14
Spins	collinear · 1 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.7314 · b 5.7367 · c 8.1029 Å · α 90° · β 90.182° · γ 90°
Transition	44 K (−229 °C)
Measured at	10 K
Magnetic ions	Ru, Yb
Largest moment component	2.76 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 2₁/c →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.0055	0.0258	0.248
Yb1	Yb	0.5	0	0	0.36	0	0.85	0.922
Ru1	Ru	0	0.5	0	1.18	0	2.76	2.9982
O1	O	0.2689	0.2961	0.0345
O2	O	0.2018	0.7706	0.0335
O3	O	0.9363	0.4876	0.2378

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

Y. Doi et al. J. Mater. Chem. (2003) · doi:10.1039/b301935g

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.670_Sr2YbRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 3e1609b45827af8308ec68e50bb5600d272d3581f8aa23d94f569e0aa80ca340
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.670_Sr2YbRuO6.mcif.