Research/Sitter/MAGNDATA / 0.513_YRuO3.mcif

YRuO₃

MAGNDATA entry 0.513 · source

d-wave 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. d-wave: the splitting changes sign twice around the Fermi surface (2 nodal planes).

Spin group ¹m²m²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 97 K (−176 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n′ m a′ BNS 62.448
Parent space group	P n m a No. 62
Spins	collinear · 2 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.839 · b 7.523 · c 5.192 Å · α 90° · β 90° · γ 90°
Transition	97 K (−176 °C)
Measured at	1.7 K
Magnetic ions	Ru
Largest moment component	0.33 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 n′ m a′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Y1	Y	0.0839	0.25	0.974
Ru1	Ru	0	0	0.5	0	0	0.33	0.33
O1	O	0.3052	0.0617	0.6689
O2	O	0.4478	0.25	0.1414

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

K. Ji et al. PHYSICAL REVIEW MATERIALS (2020) · doi:10.1103/PhysRevMaterials.4.091402

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.513_YRuO3.mcif from MAGNDATA · entry page

sha256 of this copy: aa73f5418e8827a2bd39e6a283b9bf1d65b68d2f6ef2b7c8ba6eb5e9e1f4cbd8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.513_YRuO3.mcif.