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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Toward Single Atom Chains with Exfoliated Tellurium

Fig. 4

a Raman scattering spectrum of bulk Te crystal (blue) and an exfoliated flake (red), under the same excitation conditions (633 nm, polarization parallel to c-axis). Spectra are normalized to the height of the dominant A1 peak. Fits (black curves) are a sum of two Lorentzians. b Polar plot of Raman intensity averaged over the spectral range in (a) as a function of linear excitation polarization angle relative to the c-axis (plot origin is zero intensity). The fit is a sine function plus a constant. The black arrow indicates the c-axis direction (see text)

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