Research/Sitter/MAGNDATA / 0.669_Sr2YbRuO6.mcif

Sr₂YbRuO₆

MAGNDATA entry 0.669 · 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 ≤ 36 K (−237 °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	P112₁/n No. 14
Spins	collinear · 1 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.7305 · b 8.1021 · c 5.736 Å · α 90° · β 90° · γ 90.2°
Transition	36 K (−237 °C)
Measured at	2 K
Magnetic ions	Ru, Yb
Largest moment component	1.63 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	0.248	0.0258
Yb1	Yb	0.5	0	0	0.34	0.42	0	0.5394
Ru1	Ru	0	0	0.5	1.32	1.63	0	2.0939
O1	O	0.2689	0.0345	0.2961
O2	O	0.2018	0.0335	0.7706
O3	O	0.9363	0.2378	0.4876

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

S. Sharma et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.102.134412

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.669_Sr2YbRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 616ee265b02f7a23ba9bc52c4b2b85c8b50f6cd2b6895b5cd8dab47d7740a533
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.669_Sr2YbRuO6.mcif.