Fig. 2: Raman spectroscopy of GaSe bent on mica.
From: Giant elasto-optic response of gallium selenide on flexible mica
a Raman spectra of GaSe under bending, normalised to the intensity of the peak of mica (T = 300 K, λ = 633 nm). The A''2 mode of GaSe centred at 245 cm−1 is highlighted by the purple box and its intensity increases with increasing tensile strain. Inset: Schematic of the main Raman modes of GaSe. b Intensity of the A''2 Raman peak versus the applied tensile strain ϵ. Inset: Resonant and non-resonant Raman scattering. Right panel: Images of the bent GaSe/mica samples.
