Article
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Preserved in Portico This version is not peer-reviewed
Multilayer Graphene as an Endoreversible Otto Engine
Version 1
: Received: 6 April 2023 / Approved: 7 April 2023 / Online: 7 April 2023 (05:13:32 CEST)
A peer-reviewed article of this Preprint also exists.
Myers, N.M.; Peña, F.J.; Cortés, N.; Vargas, P. Multilayer Graphene as an Endoreversible Otto Engine. Nanomaterials 2023, 13, 1548. Myers, N.M.; Peña, F.J.; Cortés, N.; Vargas, P. Multilayer Graphene as an Endoreversible Otto Engine. Nanomaterials 2023, 13, 1548.
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.
Keywords
magnetic cycle; quantum Otto cycle; graphene; quantum thermodynamics
Subject
Physical Sciences, Thermodynamics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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