Table 1 Potential van der Waals heterojunctions based on ferromagnetic MXY compounds with electronic band inversions and lattice mismatches <6.5%.

From: Quantum anomalous Hall effect in two-dimensional magnetic insulator heterojunctions

Material A

CBM (eV)

Band character (CBM)

Material B

VBM (eV)

Band character (VBM)

Lattice mismatch along a (%)

Lattice mismatch along b (%)

Nontrivial stacking order

FeNF

−7.9

Fe: dx2-y2

MnNF

−7.6

N: py

2.3

1.1

FM

VSI

−5.9

V: dxy

MoSI

−5.6

Mo: dyz

1.7

3.2

FM

VSI

−5.9

V: dxy

WSeI

−4.8

W: dyz

3.9

6.1

FM

VSI

−5.9

V: dxy

VSeI

−5.6

Se: px / I: px

2.7

6.0

FM

MnNF

−7.1

Mn: dx2-y2

MnNCl

−6.7

N: py

6.5

0.6

FM

TiTeI

−4.9

Ti: dz2

WTeI

−4.9

W: dyz

4.0

3.0

FM

VSeI

−5.1

V: dz2 / dx2-y2

WSeI

−4.8

W: dyz

6.5

0.1

FM

CrSeCl

−5.6

Cr: dx2-y2

VSeI

−5.6

Se: px / I: px

4.1

0.5

FM

  1. “Nontrivial stacking order” indicates the stacking order that guarantees a nonzero CN under the assumption that each individual material is topologically trivial. Valence-band maximum (VBM) and conduction-band minimum (CBM) are given with respect to vacuum level.