Research/Sitter/MAGNDATA / 0.795_Sr2YRuO6.mcif

Sr₂YRuO₆

MAGNDATA entry 0.795 · 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 ≤ 26 K (−247 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁/c BNS 14.75
Point group	2/m
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 5.7566 · b 5.7812 · c 8.1489 Å · α 90° · β 90.29° · γ 90°
Transition	26 K (−247 °C)
Measured at	5 K
Magnetic ions	Ru
Largest moment component	2.16 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	0.4937	0.0312	0.2512
Y1	Y	0	0	0.5
Ru1	Ru	0	0	0	2.16	0	−0.4	2.1987
O1	O	0.5706	0.4843	0.2668
O2	O	0.1961	0.2687	0.0362
O3	O	0.7323	0.1987	0.9641

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. Kaysera et al. Journal of Solid State Chemistry (2017) · doi:10.1016/j.jssc.2017.03.001

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.795_Sr2YRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 295c9c1319b189cfaf0ae49ab0ee23b80168e8f213da66c5c92425d29189bfb3
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.795_Sr2YRuO6.mcif.