Thermal resonance and energy transport in a biharmonically driven Frenkel–Kontorova lattice

Mauricio Romero-Bastida () and Santiago Guerrero-Gonzalez
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Mauricio Romero-Bastida: SEPI ESIME-Culhuacán, Instituto Politécnico Nacional
Santiago Guerrero-Gonzalez: SEPI ESIME-Culhuacán, Instituto Politécnico Nacional

The European Physical Journal B: Condensed Matter and Complex Systems, 2019, vol. 92, issue 1, 1-8

Abstract: Abstract In this work, we study the heat conduction properties of a one-dimensional Frenkel–Kontorova lattice driven by an external, time-periodic biharmonic force applied locally at one boundary and in contact with two heat reservoirs operating at different temperature by means of molecular dynamics simulations. In the single-frequency externally driven case already studied it was observed that there is a value of the driving frequency at which the heat flux takes its maximum value, a phenomenon termed as thermal resonance. It was also determined that it is possible to direct the heat flow against the imposed temperature bias by adjusting the frequency of the single harmonic driving force. With the implementation of the biharmonic forcing we have explored the temperature range at which thermal resonance effect is present. Furthermore, we have determined that by changing the relative amplitude of both harmonic components as well as the frequency of the second, taken always as a multiple, not necessarily integer, of the first one, we can adjust the frequency at which the studied effect is present in the proposed model. Graphical abstract

Keywords: Statistical; and; Nonlinear; Physics (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1140/epjb/e2018-90524-7

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