Positron lifetime spectroscopy applied to pure Tellurium

Abstract High-purity crystalline Tellurium has been investigated using positron lifetime spectroscopy technique in order to determine basic information missing the current experimental knowledge of annihilation field. Three different pairs samples have studied as-received state and, eliminate vacancy-type defects, after consecutive isothermal treatments at 300 °C. Lifetime corresponding bulk determined as 282(1) ps. Previous theoretical calculations present bibliography that used methods and parameterization provided a wide range values for Tellurium. The obtained result identify most accurate results among them.