Ontology highlight
ABSTRACT:
SUBMITTER: Wang H
PROVIDER: S-EPMC3340045 | biostudies-literature | 2012 Apr
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20120406 17
Hydrogen-rich compounds hold promise as high-temperature superconductors under high pressures. Recent theoretical hydride structures on achieving high-pressure superconductivity are composed mainly of H(2) fragments. Through a systematic investigation of Ca hydrides with different hydrogen contents using particle-swam optimization structural search, we show that in the stoichiometry CaH(6) a body-centered cubic structure with hydrogen that forms unusual "sodalite" cages containing enclathrated C ...[more]