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Structural stability and phase transition of topological insulator Bi2Te3 were studied via angle-dispersive synchrotron radiation X-ray diffraction under high pressure and low temperature condition. The results manifest that the R-3m phase (phase I) is stable at 8K over the pressure range up to 10GPa and phase transition occurs between 8K and 45K at 8GPa. According to the Birch-Murnaghan equation...
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