Research/Sitter/MAGNDATA / 0.1019_SrMnO3.mcif

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Spin lattice of Sr1Mn1O3Spin lattice of Sr1Mn1O3

Sr1Mn1O3

MAGNDATA entry 0.1019 · 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 ²m²m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 278 K (5 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupC 2 2′ 21′ BNS 20.34
Point group2′2′2
Parent space groupC 2 2 21 No. 20
Spinscollinear · 2 nodal planes · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 5.4435 · b 9.4211 · c 9.063 Å · α 90° · β 90° · γ 90°
Transition278 K (5 °C)
Measured at1.5 K
Magnetic ionsMn
Largest moment component2.27 μB
MethodNPD

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 C 2 2′ 21′ →
Atom sites · 7 sites · CSV
siteelementxyzmambmc|m| (μB)
Sr1Sr0.009600
Sr2Sr00.33330.25
Mn1Mn0.98770.33330.613102.2702.27
O1O0.521200
O2O0.77120.250.0085
O3O00.82020.25
O4O0.26960.08990.2412

Moment components are along the crystal axes a, b, c (μB), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

A. Daoud-Aladine et al. Phys. Rev B (2007) · doi:10.1103/PhysRevB.75.104417

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1019_SrMnO3.mcif from MAGNDATA · entry page

sha256 of this copy: 2c9c337620e9c83e6f72e3cac16f7fabb4fa802035539174a2fa1fdbfed6d31c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1019_SrMnO3.mcif.