New theory aims to explain superconductivity in iron pnictides
Superconductivity in iron pnictides
was first observed in 2008, and they were hailed as the
. Some iron pnictides are metals, while others are insulators. But though dissimilar in that way, both can become superconductive at roughly the same temperature. A complete theoretical understanding of superconductivity pnictides has remained elusive, but a team from Rice University and Los Alamos National Lab have suggested in a
paper in Physics Review Letters
that ordered vacancies enhance the tendency of the electrons to lock themselves some distance away from their neighbors in a pattern called Mott localization, which gives rise to an insulating state.
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