The metal-to-insulator transition in polar metals
ORAL
Abstract
The fundamental design principles that drive a switchable polarity in oxide-based
electronics whilst preserving a metallic state are not well understood. This is partly because it
requires the coexistence of two seemingly incompatible properties: ferroelectric polar
distortions and metallic conductivity. We study the prototypical polar metal LiOsO3 as a
function of strain, which acts as a benchmark to further elucidate the role of electronic
correlations in the alkali osmate perovskite-based series. Building on these results, we report a
fully correlated DFT+DMFT approach to search and design new polar metals.
electronics whilst preserving a metallic state are not well understood. This is partly because it
requires the coexistence of two seemingly incompatible properties: ferroelectric polar
distortions and metallic conductivity. We study the prototypical polar metal LiOsO3 as a
function of strain, which acts as a benchmark to further elucidate the role of electronic
correlations in the alkali osmate perovskite-based series. Building on these results, we report a
fully correlated DFT+DMFT approach to search and design new polar metals.
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Presenters
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Evan Sheridan
University of California, Berkeley
Authors
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Evan Sheridan
University of California, Berkeley
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Cedric Weber
Physics Department, King's College London, Physics, Kings College London
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Sinéad Griffin
Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory, USA
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Jeffrey Neaton
University of California, Berkeley, Department of Physics, University of California, Berkeley