Superconductivity in TlBiTe2: A Low Carrier Density (III-V)VI2Compound

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Abstract
Superconductivity has been found to occur in samples of TlBiTe2 with nominal carrier densities of approximately 6 × 1020 holes per cm3. The superconducting transition temperature is 0.14°K and the upper critical magnetic field at the absolute zero of temperature is 10 Oe. Replacing Bi with Sb produces the compound TlSbTe2 which remains normal down to 0.015°K.