Volume 111, Number 3, August 2015
|Number of page(s)||5|
|Published online||25 August 2015|
Ingredients for an efficient thermal diode
1 Center for Nonlinear and Complex Systems, Università degli Studi dell'Insubria - via Valleggio 11, 22100 Como, Italy
2 Istituto Nazionale di Fisica Nucleare, Sezione di Milano - via Celoria 16, 20133 Milano, Italy
3 Departamento de Física-Instituto de Ciências Exatas, Universidade Federal de Minas Gerais CP 702 30.161-970 Belo Horizonte MG, Brazil
4 International Institute of Physics, Federal University of Rio Grande do Norte - Natal, Brazil
Received: 12 March 2015
Accepted: 23 July 2015
We provide convincing empirical evidence that long-range interactions strongly enhance the rectification effect which takes place in mass graded systems. Even more importantly the rectification does not decrease with the increase of the system size. Large rectification is obtained also for the equal-mass case and with graded on-site potential. These results allow to overcome current limitations of the rectification mechanism and open the way for a realistic implementation of efficient thermal diodes.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 44.10.+i – Heat conduction
© EPLA, 2015
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