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Table 1 Frequency shifts of the G and 2D bands for a biaxial strain of 1% or a biaxial stress of 1 GPa [3, 24].

From: Multiscale investigation of graphene layers on 6H-SiC(000-1)

ε biax = 1 % σ biax = 1  GPa
Δ ω G biax = 60  cm 1 Δ ω G biax = 4.8 cm 1
Δ ω 2 D biax = 153  cm 1 Δ ω G biax = 12.3 cm 1