Powder X-ray diffraction (XRD) of a single crystal As2Te3. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.
Stoichiometric analysis of a single crystal As2Te3 by Energy-dispersive X-ray spectroscopy (EDX).
Raman spectrum of a single crystal As2Te3. Measurement was performed with a 785 nm Raman system at room temperature.