Altermagnets Database

Identity

Elements

Ni, F

Space group

${\mathrm{P}4_{2}/\mathrm{mnm}}$ (136)

MAGNDATA IDs

• 0.36

ICSD IDs

n/a

Parent space group(s) i Parent nonmagnetic space group(s) reported by the MAGNDATA-based symmetry analysis after Spglib standardisation.

${\mathrm{P}4_{2}/\mathrm{mnm}}$ (136)

References

• 10.1088/0022-3719/14/33/023

Properties

Band gap

5.268 eV

Electronic type

Semiconducting

Min abundance

84.0 ppm

Spin-splitting metrics

Max SS i Largest spin splitting identified within ±3 eV of the Fermi level in the high-throughput DFT workflow.

0.392 eV

Avg SS i Brillouin-zone average of the largest spin splitting at each sampled k-point in the same energy window.

0.180 eV

FΔ i Fraction of near-Fermi bands and sampled k-space showing appreciable spin splitting after the numerical noise cutoff.

27.1%

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
0.36	Noncollinear-derived	AM	d	$10^{-5}$	${\mathrm{Pnn}^{\prime}\mathrm{m}^{\prime}}$ (58.398)	4/mmm	mmm

MAGNDATA 0.36

$\mathrm{NiF_{2}}$

Open entry

Collinearity Noncollinear-derived

Phase AM

Wave d

BNS (MCIF) i BNS setting indicated in the source MCIF file.

${\mathrm{Pnn}^{\prime}\mathrm{m}^{\prime}}$ (58.398)

BNS

${\mathrm{P}4_{2}^{\prime}/\mathrm{mn}^{\prime}\mathrm{m}}$ (136.498)

Parent SG

${\mathrm{P}4_{2}/\mathrm{mnm}}$ (136)

SYMPREC i Spglib symmetry tolerance symprec, shown as an exponential base-10 value.

$10^{-5}$

Connecting element

$C_{4z}$

G Laue class

4/mmm

H Laue class

mmm

Spin-angle mismatch

1.7°

Spin-length mismatch

1.000

Reference links

• 10.1088/0022-3719/14/33/023