Research/Sitter/MAGNDATA / 0.791_Sr2TbRuO6.mcif

Sr₂TbRuO₆

MAGNDATA entry 0.791 · 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 ≤ 41 K (−232 °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 5.7805 · b 5.8072 · c 8.1853 Å · α 90° · β 90.31° · γ 90°
Transition	41 K (−232 °C)
Measured at	10 K
Magnetic ions	Ru, Tb
Largest moment component	4.69 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	0.0058	0.033	0.2494
Tb1	Tb	0.5	0	0	−1.7	0	4.69	4.9972
Ru1	Ru	0.5	0	0.5	−1.02	0	2.82	3.004
O1	O	0.2697	0.3027	0.0374
O2	O	0.1939	0.773	0.0397
O3	O	0.9286	0.4824	0.2319

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 (2000) · doi:10.1039/b000689k

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.791_Sr2TbRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 89ef68f966272aeb7cc0314b959cabc8cfa89ba55c19f2aa9113f07b77f1ff0e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.791_Sr2TbRuO6.mcif.