Table 1 Transformation matrices of the predicted OPs with respect to the three generators of the P4/nmm/\({\mathcal{T}}\cong {D}_{4{\rm{h}}}\) point group.
From: A first-principle perspective on electronic nematicity in FeSe
OP | \(\{{\sigma }_{{\rm{h}}}| \frac{1}{2}\frac{1}{2}\}\) | \(\{{\sigma }_{{\rm{v}}}| \frac{1}{2}\frac{1}{2}\}\) | σd |
|---|---|---|---|
\({\Delta }_{{B}_{1{\rm{g}}}}\) | 1 | 1 | −1 |
\(({\Delta }_{{E}_{{\rm{u}},1}},{\Delta }_{{E}_{{\rm{u}},2}})\) | \(\left(\begin{array}{ll}1&0\\ 0&1\end{array}\right)\) | \(\left(\begin{array}{ll}-1&0\\ 0&1\end{array}\right)\) | \(\left(\begin{array}{ll}0&1\\ 1&0\end{array}\right)\) |
