Table 3 Effective mass m^*/m for different Fe-d states of Fe₃GeTe₂ bulk.

Fe1

\({d}_{{z}^{2}}\)

2.00

2.08

1.54⁸⁸

\({d}_{x}^{2}-{y}^{2}\)

1.75

2.11

d_yz

1.78

1.95

d_xz

1.78

1.95

d_xy

1.75

2.11

Fe3

\({d}_{{z}^{2}}\)

1.44

1.78

1.6⁶⁹

\({d}_{x}^{2}-{y}^{2}\)

1.42

1.62

d_yz

1.55

1.66

d_xz

1.55

1.66

d_xy

1.42

1.62