Altermagnets Database

High-throughput computational screening for altermagnetic materials

$\mathrm{Fe_{2}O_{3}}$

R-3c | Naturally collinear | Semiconducting

AM wave g

Identity

Elements
Fe, O
Space group
${\mathrm{R}\overline{3}\mathrm{c}}$ (167)
MAGNDATA IDs
ICSD IDs
n/a
Parent space group(s) i Parent nonmagnetic space group(s) reported by the MAGNDATA-based symmetry analysis after Spglib standardisation.
${\mathrm{R}\overline{3}\mathrm{c}}$ (167)

Properties

Band gap
2.566 eV
Electronic type
Semiconducting
Min abundance
56,300 ppm

Spin-splitting metrics

Max SS i Largest spin splitting identified within ±3 eV of the Fermi level in the high-throughput DFT workflow.
0.237 eV
Avg SS i Brillouin-zone average of the largest spin splitting at each sampled k-point in the same energy window.
0.152 eV
i Fraction of near-Fermi bands and sampled k-space showing appreciable spin splitting after the numerical noise cutoff.
29.0%

Figures

0 of 3 detail figures available from the mounted calculation archive.

Band structure

Band structure has not been generated for this material yet.

Crystal structure

Crystal structure figure has not been generated for this material yet.

Brillouin zone and path

Reciprocal-space box with labelled special points and the reported Δmax location when available.

Brillouin-zone figure has not been generated for this material yet.

Symmetry screening

The summary table shows one row per linked MAGNDATA record and symmetry-precision variant. If a MAGNDATA ID has multiple Spglib symprec values in the source data, it appears on multiple rows. The cards below keep the same expanded per-variant detail view, including wave classification and mismatch metrics.

MAGNDATA ID Collinearity Phase Wave SYMPREC i Spglib symmetry tolerance symprec, shown as an exponential base-10 value. BNS (MCIF) i BNS setting indicated in the source MCIF file. G H
0.66 Naturally collinear AM g $10^{-5}$ ${\mathrm{P}\overline{1}}$ (2.4) -3m -3
0.65 Naturally collinear AM g $10^{-5}$ ${\mathrm{C}2^{\prime}/\mathrm{c}^{\prime}}$ (15.89) -3m -3

MAGNDATA 0.66

$\mathrm{Fe_{2}O_{3}-alpha}$

Open entry
Collinearity Naturally collinear
Phase AM
Wave g
BNS (MCIF) i BNS setting indicated in the source MCIF file.
${\mathrm{P}\overline{1}}$ (2.4)
BNS
${\mathrm{R}\overline{3}\mathrm{c}^{\prime}}$ (167.107)
Parent SG
${\mathrm{R}\overline{3}\mathrm{c}}$ (167)
SYMPREC i Spglib symmetry tolerance symprec, shown as an exponential base-10 value.
$10^{-5}$
Connecting element
$C_{21}$
G Laue class
-3m
H Laue class
-3
Spin-angle mismatch
0.0°
Spin-length mismatch
1.000
Reference links

MAGNDATA 0.65

$\mathrm{Fe_{2}O_{3}-alpha}$

Open entry
Collinearity Naturally collinear
Phase AM
Wave g
BNS (MCIF) i BNS setting indicated in the source MCIF file.
${\mathrm{C}2^{\prime}/\mathrm{c}^{\prime}}$ (15.89)
BNS
${\mathrm{R}\overline{3}\mathrm{c}^{\prime}}$ (167.107)
Parent SG
${\mathrm{R}\overline{3}\mathrm{c}}$ (167)
SYMPREC i Spglib symmetry tolerance symprec, shown as an exponential base-10 value.
$10^{-5}$
Connecting element
$C_{21}$
G Laue class
-3m
H Laue class
-3
Spin-angle mismatch
0.0°
Spin-length mismatch
1.000
Reference links

Notes and warnings

  • Spglib mcif symmetry mismatch
  • Spglib mcif symmetry mismatch