Electrical resistance of calcium is measured at temperatures down 1o 50inK and in pressures up to 100GPa using a diamond-anvil cell. Pressure-induced superconductivity of calcium is observed at around 3K under pressure of 85GPa. The transition temperature of calcium increases linearly with increasing pressure and reaches about 5K in 100GPa.
ASJC Scopus subject areas
- General Physics and Astronomy