Electron Hydrodynamics in Graphene : Experimental and Theoretical Status
Subhalaxmi Nayak, Cho Win Aung, Thandar Zaw Win, Ashutosh Dwibedi, Sabyasachi Ghosh, Sesha Vempati
Published: 2025/9/14
Abstract
The present work comprehensively reviews electron hydrodynamics in graphene, highlighting both experimental observations and theoretical developments. Key experimental signatures such as negative vicinity resistance, Poiseuille flow, and significant violation of the Wiedemann-Franz (WF) law have been discussed, with special emphasis on Lorenz ratio measurements. In the theoretical direction, recent efforts have focused on developing hydrodynamic frameworks for calculating the thermodynamic and transport coefficients of electrons in graphene. The present work has briefly addressed the theoretical framework adopted by our group.