DFT calculations indicate the rhombohedral β-Cu₂Se is a Dirac semimetal with bulk Dirac points protecting surface Fermi arc states.
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This is a review summarizing existing extensions of the SSH model to higher dimensions, larger unit cells, and additional terms, with case studies of their topological properties.
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Dirac Semimetal Phase in Rhombohedral $\beta -$Cu$_{2}$Se
DFT calculations indicate the rhombohedral β-Cu₂Se is a Dirac semimetal with bulk Dirac points protecting surface Fermi arc states.
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Exploring topological phases with extended Su-Schrieffer-Heeger models
This is a review summarizing existing extensions of the SSH model to higher dimensions, larger unit cells, and additional terms, with case studies of their topological properties.