Extended Data Figure 3: Fitting of the Lorentz function for Raman spectra at different biases.
From: Structural phase transition in monolayer MoTe2 driven by electrostatic doping

a, b, Raman spectra at 0 V and 4.4 V are well fitted by only one Lorentz function, representing a single Raman mode (
in the 2H phase, and Ag in the 1T′ phase). c, A typical Raman spectrum taken during transition from one phase to another (for example, at a bias of 3.6 V) is well fitted by two Lorentz functions, centred at
and Ag.