High-Temperature Cubic Phase of the Paratellurite TeO₂

Abstract

For the first time a high-temperature cubic phase of the tellurium dioxide from the glassy state has been synthesized. According to X-ray data at Cu K_α—radiation and room temperature the parameters of the elementary cubic cell are: a = 9.716 ± 0.005 Å, Z = 16. Possible space symmetry groups are or .

Keywords:

• Paratellurite
• cubic phase
• differential-thermal analysis
• X-ray analysis

Acknowledgments

We are grateful to E.E. Polyakova and A.S. Baskevich for assistance in experimental works, B.N. Litvin for participation in the discussion of results.