2007/06/30 by Maxim Trushin, John Schliemann · 110 citations
Materials Science · Physics and Astronomy · #Boltzmann constant #Boltzmann equation #Coherence (philosophical gambling strategy) #Coherence length #Condensed matter physics #Electrical resistivity and conductivity #Electron #Graphene #Graphene research and applications #Kinetic energy #Materials science #Physics #Quantum mechanics #Superconductivity #Thermal #Thermal conductivity #Thermal properties of materials #Thermodynamics #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevlett.99.216602
published in Physical Review Letters 99(21), 216602 (American Physical Society) · 4 pages 1 figure (final version, as published in PRL)
openalex publication_date 2007/11/21 · arxiv created 2007/11/23 · arxiv updated 2011/11/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the minimum conductivity of graphene within a quasiclassical approach taking into account electron-hole coherence effects which stem from the chiral nature of low energy excitations. Relying on an analytical solution of the kinetic equation in the electron-hole coherent and incoherent cases, we study both the electrical and the thermal conductivity whose relation satisfies the Wiedemann-Franz law. We find that most of the previous findings based on the Boltzmann equation are restricted to only high mobility samples where electron-hole coherence effects are not sufficient.