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Crystal Structure of Tellurium at High Pressures

1965; American Institute of Physics; Volume: 43; Issue: 4 Linguagem: Inglês

10.1063/1.1696895

1520-9032

John C. Jamieson, D. B. McWhan,

Crystallography and molecular interactions

Powder x-ray-diffraction studies on tellurium up to 150 kbar show only two structural transitions at 40 and 70 kbar in agreement with Bridgman's work. The structure of the 40–70-kbar phase is unsolved. Above 70 kbar, it is proposed that tellurium is isomorphous with β-polonium and is rhombohedral with a=3.002±15 Å, α=103.3°±3° (P=115 kbar), space group R3̄m with an atom in 1a (0, 0, 0).