Research/Sitter/MAGNDATA / 0.947_YCrO3.mcif

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Spin lattice of Y1Cr1O3Spin lattice of Y1Cr1O3

Y1Cr1O3

MAGNDATA entry 0.947 · 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 ≤ 141.5 K (−132 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP n′ m a′ BNS 62.448
Point groupm′m′m
Parent space groupP n m a No. 62
Spinscollinear · 2 nodal planes · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 5.5189 · b 7.5205 · c 5.2323 Å · α 90° · β 90° · γ 90°
Transition141.5 K (−132 °C)
Measured at12 K
Magnetic ionsCr
Largest moment component2.45 μB
MethodNPD and NSD

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
siteelementxyzmambmc|m| (μB)
Cr1Cr000.500−2.452.45
Y1Y0.06820.250.9828
O1O0.46430.250.1039
O2O0.3020.05390.6935

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

Y. Zhu et al. PHYSICAL REVIEW MATERIALS (2020) · doi:10.1103/PhysRevMaterials.4.094409

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.947_YCrO3.mcif from MAGNDATA · entry page

sha256 of this copy: 6ffb3c41280bc0f0f950a9e02c9b7cce47f4f7163509deb4a4312dbc33822afe
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.947_YCrO3.mcif.