Abstract: Graphene is perhaps the most prominent “Dirac material,” a class of systems whose lattice structure gives rise to charge carriers that behave as relativistic massless fermions. This emergence of relativistic behavior at laboratory scale energies makes graphene an ideal environment for probing the thermodynamics of relativistic quantum systems. For multilayer graphene, consisting of several stacked crystal sheets, subject to an external magnetic field the scaling of the energy spectrum with the magnetic field depends strongly on the number of layers. We examine the performance of a finite-time, endoreversible Otto cycle with multilayer graphene as its working medium. We show that there exists a simple relationship between the engine efficiency and the number of layers, and that the efficiency at maximum power can exceed that of a classical working medium.
Watch Dr. Myers talk here: https://youtu.be/V_ZFwB4k3Ck