Research/Sitter/MAGNDATA / 0.917_Sr2ScOsO6.mcif

Sr₂Sc₁Os₁O₆

MAGNDATA entry 0.917 · 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 ≤ 92 K (−181 °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 5.6398 · b 5.6373 · c 7.9884 Å · α 90° · β 90.22° · γ 90°
Transition	92 K (−181 °C)
Measured at	3.5 K
Magnetic ions	Os
Largest moment component	1.6 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	0.004	0.9858	0.2506
Os1	Os	0.5	0	0.5	1.6	0	0	1.6
Sc1	Sc	0.5	0	0
O1	O	0.2202	0.2295	0.027
O2	O	0.245	0.233	0.4757
O3	O	0.5443	0.006	0.2558

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

A. E. Taylor et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.91.100406

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.917_Sr2ScOsO6.mcif from MAGNDATA · entry page

sha256 of this copy: 19c22310713a741eb690a89f83ef2bd6eee9b0ee3c62063fbb55b4404da2ddf5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.917_Sr2ScOsO6.mcif.

Sr2Sc1Os1O6

Symmetry

Source

Original file

Sr₂Sc₁Os₁O₆