Table 1 Fitting parameters for topological surface state and 2D state.

From: Electronic structure and relaxation dynamics in a superconducting topological material

Band

Decay constants (ps)

r2

Amplitude (A)

L-SS

τ1 = τ2 = 1.58

0.99

A = 1.382

R-SS

τ1 = τ2 = 1.69

0.99

A = 1.347

2D state

τ1 = 0.70 and τ2 = 1.46

0.99

A1 = 0.33, A2 = 1.14

  1. Topological surface state is fitted with one decay constant, whereas the 2D state is fitted with two decay constants.