Table 1 Symmetry chart of Ghelical and Gphoton compared to edge photocurrent phenomena
From: Spin Hall photoconductance in a three-dimensional topological insulator at room temperature
G helical | G photo | I edge | |
Vsd → – Vsd | −1 | −1 | 0 |
σ+ → σ− | −1 | +1 | −1 |
kphoton → – kphoton | +1 | +1 | +1 |
left edge → right edge | −1 | +1 | −1 |
