Table 3 Table shows bands, subgroups, and eigenvectors of M2B2 (M = Sc, Y, Nb) where the direction of vibration referred as out-of-plane (OP) or in-plane (IP)

From: High-Tc 2D ambient BCS superconductors in hydrogenated transition-metal borides

Band ν

Subgroup

Eigenvec.

Sc2B2

Band ν

Subgroup

Eigenvec.

Y2B2

4,5

E1g

Sc:IP

23.76

4,5

E1g

Y:IP

15.72

6

A1g

Sc:OP

31.33

6

A1g

Y:OP

21.45

7,8

E1u

B:IP

47.32

7,8

E1u

B:IP

41.64

9

A2u

B:OP

55.89

9

A2u

B:OP

50.86

10

B1g

B:OP

67.62

10

B1g

B:OP

65.77

11,12

E2g

B:IP

100.21

11,12

E2g

B:IP

81.67

Band ν

Subgroup

Eigenvec.

V2B2

Band ν

Subgroup

Eigenvec.

Nb2B2

4,5

E1g

V:IP

31.31

4,5

E1g

Nb:IP

22.21

6

A1g

V:OP

38.24

6

A1g

Nb:OP

28.94

7

B1g

B:OP

65.54

7,8

E1u

B:IP

62.65

8,9

E1u

B:IP

66.76

9

B1g

B:OP

69.11

10

A2u

B:OP

70.48

10

A2u

B:OP

69.65

11,12

E2g

B:IP

116.89

11,12

E2g

B:IP

92.87

  1. The visualization of these eigenvectors is shown in Fig. 5.