2023
DOI: 10.1038/s41467-023-37197-2
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Signature of quantum interference effect in inter-layer Coulomb drag in graphene-based electronic double-layer systems

Abstract: The distinguishing feature of a quantum system is interference arising from the wave mechanical nature of particles which is clearly central to macroscopic electronic properties. Here, we report the signature of quantum interference effect in inter-layer transport process. Via systematic magneto-drag experiments on graphene-based electronic double-layer systems, we observe low-field correction to the Coulomb-scattering-dominated inter-layer drag resistance in a wide range of temperature and carrier density, wi… Show more

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Cited by 6 publications
(2 citation statements)
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“…This behavior can be attributed to the nonzero Berry curvature resulting from the broken inversion symmetry at the interface. These experimental findings provide exciting opportunities to explore the theoretical understanding of the role of Berry curvature as an analogue of a magnetic field in systems with broken inversion symmetry with strong SOC as well as systems with superconducting correlations , and nontrivial band topology …”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…This behavior can be attributed to the nonzero Berry curvature resulting from the broken inversion symmetry at the interface. These experimental findings provide exciting opportunities to explore the theoretical understanding of the role of Berry curvature as an analogue of a magnetic field in systems with broken inversion symmetry with strong SOC as well as systems with superconducting correlations , and nontrivial band topology …”
Section: Discussionmentioning
confidence: 96%
“…The intricate interplay between electron–electron interactions and the nontrivial topology of materials could have a significant influence on the behavior of condensed matter systems. The Coulomb drag effect, which refers to the transfer of momentum/energy between two closely spaced electron layers, serves as an unambiguous probe to understand these interactions. Coulomb drag at charge neutrality (CN) has garnered significant attention due to its complex nature. Drag events are mainly dominated by energy-driven mechanisms, , rather than momentum-mediated drag at CN. , The key requirement for energy-driven drag at CN is the coupling between energy (neutral mode) and charge currents which is generally achieved by applying a weak magnetic field ( B -field) .…”
Section: Introductionmentioning
confidence: 99%