Metallic CsI at Pressures of up to 220 Gigapascals
- 28 August 1998
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 281 (5381), 1333-1335
- https://doi.org/10.1126/science.281.5381.1333
Abstract
Direct electrical transport measurements in a diamond anvil cell provide evidence for the metallization of cesium iodide (CsI) at a pressure of 115 gigapascals. A drop in the temperature dependence of the resistance was found at pressures above 180 gigapascals, indicating that the CsI was superconductive. The superconductivity changed under the influence of a magnetic field to a lower critical temperature and disappeared above 0.3 tesla. The highest critical temperature at which superconductivity was observed was 2 kelvin, and the critical temperature decreased with increasing pressure.Keywords
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