Iodine at high pressures and low temperatures

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Abstract
Using a cryogenic clamp‐type high pressure apparatus, the electrical resistance behavior of iodine was studied for pressures from 80 to 280 kbar and temperatures from 300 to 2.6 °K. The resistivity of iodine approaches metallic values for pressures higher than 130 kbar. No superconductivity is observed in metallic iodine either in the molecular phase below 210 kbar or in the monatomic phase up to 280 kbar.