研究目的
Investigating conditions under which electronic preturbulence can be triggered and sustained in experimentally realizable graphene samples.
研究成果
The study concludes that electronic preturbulence can be observed in graphene samples under specific conditions, including reduced electron-phonon scattering and suitable geometries. This phenomenon manifests as fluctuations in the electrical potential within a frequency range of 10 to 100 GHz.
研究不足
The study is limited by the current experimental capabilities to achieve the required low levels of electron-phonon scattering and the high values of the Reynolds number needed to observe preturbulence.
1:Experimental Design and Method Selection:
The study uses extensive numerical simulations based on a lattice Boltzmann approach to model the hydrodynamic behavior of electrons in graphene, accounting for electrostatic interactions and electron-phonon scattering.
2:Sample Selection and Data Sources:
The simulations consider a specific geometry of graphene samples with constrictions and obstacles to induce preturbulence.
3:List of Experimental Equipment and Materials:
The study does not specify physical equipment but relies on numerical simulations.
4:Experimental Procedures and Operational Workflow:
The workflow involves simulating the electron flow in graphene under various conditions to identify the onset of preturbulence.
5:Data Analysis Methods:
The analysis focuses on identifying the transition from laminar to preturbulent flow by monitoring the electrochemical potential and velocity field.
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