Research/Sitter/MAGNDATA / 0.404_Sr3NaRuO6.mcif

Sr₃NaRuO₆

MAGNDATA entry 0.404 · 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 ¹3̄²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 70 K (−203 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C 2′/c′ BNS 15.89
Parent space group	R 3 c No. 167
Spins	collinear · 3 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 9.6086 · b 9.6086 · c 11.5054 Å · α 90° · β 90° · γ 120°
Transition	70 K (−203 °C)
Measured at	1.5 K
Magnetic ions	Ru
Largest moment component	1 μ_B
Method	Magnetic resonant X-ray scattering

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 C 2′/c′ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1_1	Sr	0.6417	0	0.25
Sr1_2	Sr	0	0.6417	0.25
Na1	Na	0	0	0.25
Ru1	Ru	0	0	0	1	0	0	1
O1_1	O	0.1557	0.5118	0.5673
O1_2	O	0.4882	0.6439	0.5673
O1_3	O	0.3561	0.8443	0.5673

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

D.G. Porter et al. Phys. Rev. B (2016) · doi:10.1103/PhysRevB.94.134404

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.404_Sr3NaRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 21ab950d680a595f089eec5fb207aefca8a4feb91e6f962a3fd6192a704b8f1f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.404_Sr3NaRuO6.mcif.