Table 1 The character table of Dirac Γ matrices and the polynomials of the momentum k for BaAuBi.
From: Dirac and Weyl Semimetal in XYBi (X = Ba, Eu; Y = Cu, Ag and Au)
Γ matrices | representation | T |
|---|---|---|
Γ0, Γ5 | R 1 | + |
{Γ1, Γ2} | R 14 | + |
{Γ3, Γ4} | R 15 | + |
Γ12, Γ34 | R 2 | − |
Γ14 + Γ23 | R 3 | − |
Γ13 − Γ24 | R 4 | − |
{Γ13 + Γ24, Γ14 − Γ23} | R 6 | − |
{Γ15, Γ25} | R 14 | − |
{Γ35, Γ45} | R 15 | − |
d(k) | representation | T |
C, | R 1 | + |
| R 14 | − |
| R 15 | − |
kz, | R 11 | − |
| R | + |
{kxkz, kykz} | R 6 | + |
| R | − |
| R | − |
, 
, 
