Research/Sitter/MAGNDATA / 0.1013_Ba2NdRuO6.mcif

Ba₂Nd₁Ru₁O₆

MAGNDATA entry 0.1013 · 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 ≤ 58 K (−215 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 1 BNS 2.4
Point group	1
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 5.9715 · b 5.9709 · c 8.4761 Å · α 90° · β 90° · γ 90°
Transition	58 K (−215 °C)
Measured at	7 K
Magnetic ions	Nd, Ru
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 1 →

Atom sites · 12 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1_1	Ba	0.019	0.001	0.246
Ba1_2	Ba	0.481	0.501	0.254
Nd1_1	Nd	0.5	0	0	1.63	−1.63	0	2.3052
Nd1_2	Nd	0	0.5	0.5	−1.63	1.63	0	2.3052
Ru1_1	Ru	0.5	0	0.5	−1.56	1.56	0	2.2062
Ru1_2	Ru	0	0.5	0	1.56	−1.56	0	2.2062
O1_1	O	0.215	0.25	0.007
O1_2	O	0.285	0.75	0.493
O2_1	O	0.216	0.749	0.007
O2_2	O	0.284	0.249	0.493
O3_1	O	0.973	0.486	0.232
O3_2	O	0.527	0.986	0.268

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. Izumiyama et al. J. Mater. Chem. (2000) · doi:10.1039/b003629n

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1013_Ba2NdRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 51b05d9de8b471ad80020eb333b203e8b956121bce54934371098d6c524cc8f7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1013_Ba2NdRuO6.mcif.

Ba2Nd1Ru1O6

Symmetry

Source

Original file

Ba₂Nd₁Ru₁O₆