X-ray diffraction on a Sb2Te3 single crystal aligned along the (001) plane. XRD was performed at room temperature using a D8 Venture Bruker. The 7 XRD peaks correspond, from left to right, to (00l) with l = 6, 9, 12, 15, 18, 21, 24

Powder X-ray diffraction (XRD) of a single crystal Sb2Te3. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.

Stoichiometric analysis of a single crystal Sb2Te3 by Energy-dispersive X-ray spectroscopy (EDX).

Raman spectrum of a single crystal Sb2Te3. Measurement was performed with a 785 nm Raman system at room temperature.