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01770nam a2200325Ia 4500 |
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10.1103-PhysRevB.105.115138 |
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220425s2022 CNT 000 0 und d |
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|a 24699950 (ISSN)
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| 245 |
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|a Bad topological semimetals in layered honeycomb compounds
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| 260 |
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|b American Physical Society
|c 2022
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| 856 |
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|z View Fulltext in Publisher
|u https://doi.org/10.1103/PhysRevB.105.115138
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|a The Mott transition in honeycomb compounds with significant spin-orbit coupling is explored. At finite temperatures we identify a novel semimetallic phase located between a topological insulator and a topological Mott insulator. This semimetal is characterized by having no charge gap, no quasiparticles, and gapped spin excitations with nontrivial topological properties. While charge conduction is incoherent involving mean-free paths violating the Mott-Ioffe-Regel limit, spin excitations can be transported ballistically along the edges giving rise to a quantized spin conductance. Such bad topological semimetal could be searched for close to the Mott transition in certain twisted bilayers of transition metal dicalchogenides. © 2022 American Physical Society.
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|a Charge gap
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|a Electric insulators
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|a Finite temperatures
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|a Gapped spin excitations
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|a Honeycomb structures
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|a Mott insulators
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|a Mott insulators
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|a Mott transitions
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|a Quasiparticles
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|a Semimetallics
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|a Spin-orbit couplings
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|a Topological insulators
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|a Topological properties
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|a Topology
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|a Transition metals
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|a Fernández López, M.
|e author
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|a Merino, J.
|e author
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| 773 |
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|t Physical Review B
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