Joule-Thomson Cooling in Graphene
arXiv:1908.05934 · doi:10.1134/S0021364020030030
Abstract
Electrons in graphene exhibit hydrodynamic behavior in a certain range of temperatures. We indicate that electric current in this regime can result in cooling of electron fluid due to the Joule-Thomson effect. Cooling occurs in the Fermi liquid regime, while for the Dirac fluid the effect results in heating.
arXiv comment5 pages, 2 figures; v2: derivation of (22) expanded, more thorough discussion of the neutrality regime, refs added
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