Recent Studies in Superconductivity at Extreme Pressures

Details Recent Studies in Superconductivity at Extreme Pressures Recent Studies in Superconductivity at Extreme Pressures

2007-10-15

arxiv.org/abs/0710.3505v1

Physics

Condensed Matter

Superconductivity

Proceedings of the 21st AIRAPT and 45th EHPRG International Conference on High Pressure Science and Technology, Catania, Italy

Scientific paper

10.1016/j.physc.2007.03.025

Studies of the effect of high pressure on superconductivity began in 1925 with the seminal work of Sizoo and Onnes on Sn to 0.03 GPa and have continued up to the present day to pressures in the 200 - 300 GPa range. Such enormous pressures cause profound changes in all condensed matter properties, including superconductivity. In high pressure experiments metallic elements, Tc values have been elevated to temperatures as high as 20 K for Y at 115 GPa and 25 K for Ca at 160 GPa. These pressures are sufficient to turn many insulators into metals and magnetics into superconductors. The changes will be particularly dramatic when the pressure is sufficient to break up one or more atomic shells. Recent results in superconductivity to Mbar pressures wll be discussed which exemplify the progress made in this field over the past 82 years.

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