Classical nernst engine

Julian Stark, Kay Brandner, Keiji Saitou, Udo Seifert

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We introduce a simple model for an engine based on the Nernst effect. In the presence of a magnetic field, a vertical heat current can drive a horizontal particle current against a chemical potential. For a microscopic model invoking classical particle trajectories subject to the Lorentz force, we prove a universal bound 3-22≃0.172 for the ratio between the maximum efficiency and the Carnot efficiency. This bound, as the slightly lower one 1/6 for efficiency at maximum power, can indeed be saturated for a large magnetic field and small fugacity.

Original languageEnglish
Article number140601
JournalPhysical Review Letters
Volume112
Issue number14
DOIs
Publication statusPublished - 2014 Apr 7

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engines
particle trajectories
Lorentz force
magnetic fields
heat

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Stark, J., Brandner, K., Saitou, K., & Seifert, U. (2014). Classical nernst engine. Physical Review Letters, 112(14), [140601]. https://doi.org/10.1103/PhysRevLett.112.140601

Classical nernst engine. / Stark, Julian; Brandner, Kay; Saitou, Keiji; Seifert, Udo.

In: Physical Review Letters, Vol. 112, No. 14, 140601, 07.04.2014.

Research output: Contribution to journalArticle

Stark, J, Brandner, K, Saitou, K & Seifert, U 2014, 'Classical nernst engine', Physical Review Letters, vol. 112, no. 14, 140601. https://doi.org/10.1103/PhysRevLett.112.140601
Stark, Julian ; Brandner, Kay ; Saitou, Keiji ; Seifert, Udo. / Classical nernst engine. In: Physical Review Letters. 2014 ; Vol. 112, No. 14.
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