Multilayer Graphene as an Endoreversible Otto Engine
- URL: http://arxiv.org/abs/2212.03286v3
- Date: Fri, 16 Dec 2022 20:38:44 GMT
- Title: Multilayer Graphene as an Endoreversible Otto Engine
- Authors: Nathan M Myers, Francisco J. Pe\~na, Natalia Cort\'es, Patricio Vargas
- Abstract summary: Graphene is a class of systems whose electronic structure gives rise to charge carriers that behave as relativistic fermions.
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 endoreversible Otto cycle.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Graphene is perhaps the most prominent "Dirac material," a class of systems
whose electronic structure gives rise to charge carriers that behave as
relativistic fermions. In multilayer graphene several crystal sheets are
stacked such that the honeycomb lattice of each layer is displaced along one of
the lattice edges. When subject to an external magnetic field, the scaling of
the multilayer energy spectrum with the magnetic field, and thus the system's
thermodynamic behavior, depends strongly on the number of layers. With this in
mind, 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
endoreversible Otto cycle.
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