Figure 4: BCS-like behaviour of the bandgap evolution with temperature.
From: Charge density wave transition in single-layer titanium diselenide
The measured gap squared is shown as squares. The blue curve is a fit using a BCS-type gap equation. The red-dashed line is a linear approximation of the data near but below the transition temperature TC. The error bars represent the s.d. of the band position from fitting to the band dispersion at each temperature.
