Twisted bilayered graphenes at magic angles and Casimir interactions: correlation-driven effects
| Autor: | Elena Bascones, Dai-Nam Le, Maria Jose Calderon, Lilia Woods, Pablo Rodriguez-Lopez |
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| Rok vydání: | 2022 |
| Předmět: |
Condensed Matter - Materials Science
Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity Mechanical Engineering Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences General Chemistry Condensed Matter Physics Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Mechanics of Materials Mesoscale and Nanoscale Physics (cond-mat.mes-hall) General Materials Science Quantum Physics (quant-ph) |
| DOI: | 10.48550/arxiv.2210.02378 |
| Popis: | Twisted bilayered graphenes at magic angles are systems housing long ranged periodicity of Moir\'e pattern together with short ranged periodicity associated with the individual graphenes. Such materials are a fertile ground for novel states largely driven by electronic correlations. Here we find that the ubiquitous Casimir force can serve as a platform for macroscopic manifestations of the quantum effects stemming from the magic angle bilayered graphenes properties and their phases determined by electronic correlations. By utilizing comprehensive calculations for the electronic and optical response, we find that Casimir torque can probe anisotropy from the Drude conductivities in nematic states, while repulsion in the Casimir force can help identify topologically nontrivial phases in magic angle twisted bilayered graphenes. Comment: 9 pages, 6 figures (main), 7 pages, 7 figures (supplementary); provisionally accepted for publication in 2D Materials |
| Databáze: | OpenAIRE |
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