Superconductivity of Calcium under High Pressures

Shingo Okada; Katsuya Shimizu; Tatsuo C. Kobayashi; Kiichi Amaya; Shoichi Endo

doi:10.1143/jpsj.65.1924

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Superconductivity of Calcium under High Pressures

Shingo Okada, Katsuya Shimizu, Tatsuo C. Kobayashi, Kiichi Amaya, Shoichi Endo

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Keywords: low temperature, high pressure, superconductivity, calcium, electrical resistance measurement, alkaline earth metals

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1996 Volume 65 Issue 7 Pages 1924-1926

DOI https://doi.org/10.1143/jpsj.65.1924

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Abstract

Electrical resistance of Ca is measured under pressures up to 150, GPa and at temperatures down to 0.05, K. Superconductivity is observed at temperatures below 3, K under pressures above 85, GPa. The superconducting transition temperature increases linearly with increasing pressure and reaches about 15, K at 150, GPa.

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