Abstract
Electrical resistivity and Raman spectra of ErH3 were studied in a diamond anvil cell under high pressure up to 140GPa in the temperature range 4–300K. A crossover from a semiconductor-like to a metallic temperature dependence of resistivity at fixed pressures was observed at about 50GPa. In the pressure range 80–140GPa a resistivity maximum was observed at the R(T) dependencies. The temperature corresponding to this maximum linearly increased with pressure increase, reaching 26K at 140GPa. No superconductivity was observed in the studied pressure-temperature range.
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