Research/Sitter/MAGNDATA / 0.793_Sr2HoRuO6.mcif

Sr₂HoRuO₆

MAGNDATA entry 0.793 · 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 ≤ 36 K (−237 °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 5.7618 · b 5.7819 · c 8.1507 Å · α 90° · β 90.25° · γ 90°
Transition	36 K (−237 °C)
Measured at	25 K
Magnetic ions	Ho, Ru
Largest moment component	3.02 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	0.0071	0.0314	0.2485
Ho1	Ho	0.5	0	0	0	0	3.02	3.02
Ru1	Ru	0.5	0	0.5	0	0	2.19	2.19
O1	O	0.2673	0.3012	0.0352
O2	O	0.1973	0.7733	0.0375
O3	O	0.9311	0.4828	0.2343

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/A909096G

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.793_Sr2HoRuO6.mcif from MAGNDATA · entry page

sha256 of this copy: 16b3783e6e50fe8773a16888b8360c43894a486c700bc01fe848e72b42d1209c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.793_Sr2HoRuO6.mcif.