Two $T$-linear scattering rate regimes in the triangular lattice Hubbard model
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866912025235423232 |
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| author | Fournier, Jérôme Downey, Pierre-Olivier Hébert, Charles-David Charlebois, Maxime Tremblay, André-Marie |
| author_facet | Fournier, Jérôme Downey, Pierre-Olivier Hébert, Charles-David Charlebois, Maxime Tremblay, André-Marie |
| contents | In recent years, the $T$-linear scattering rate found at low temperatures, defining the strange metal phase of cuprates, has been a subject of interest. Since a wide range of materials have a scattering rate that obeys the equation $ \hbar / τ\approx k_B T$, the idea of a universal Planckian limit on the scattering rate has been proposed. However, there is no consensus on proposed theories yet. In this work, we present our results for the $T$-linear scattering rate in the triangular lattice Hubbard model obtained using the dynamical cluster approximation. We find two regions with $T$-linear scattering rate in the $T$ -- $p$ phase diagram: one emerges from the pseudogap to correlated Fermi liquid phase transition at low doping, whereas the other is solely caused by large interaction strength at large doping. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_08306 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Two $T$-linear scattering rate regimes in the triangular lattice Hubbard model Fournier, Jérôme Downey, Pierre-Olivier Hébert, Charles-David Charlebois, Maxime Tremblay, André-Marie Strongly Correlated Electrons In recent years, the $T$-linear scattering rate found at low temperatures, defining the strange metal phase of cuprates, has been a subject of interest. Since a wide range of materials have a scattering rate that obeys the equation $ \hbar / τ\approx k_B T$, the idea of a universal Planckian limit on the scattering rate has been proposed. However, there is no consensus on proposed theories yet. In this work, we present our results for the $T$-linear scattering rate in the triangular lattice Hubbard model obtained using the dynamical cluster approximation. We find two regions with $T$-linear scattering rate in the $T$ -- $p$ phase diagram: one emerges from the pseudogap to correlated Fermi liquid phase transition at low doping, whereas the other is solely caused by large interaction strength at large doping. |
| title | Two $T$-linear scattering rate regimes in the triangular lattice Hubbard model |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2312.08306 |