Open AccessThermal rectification of asymmetric double-stranded molecular structure
Author(s) -
Mao-Ping Zhang,
Wei-Rong Zhong,
Ai Bao-Quan
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.060511
Subject(s) - rectification , molecular dynamics , non equilibrium thermodynamics , chain (unit) , thermal , chemical physics , materials science , physics , power (physics) , thermodynamics , quantum mechanics
Using nonequilibrium molecular dynamics simulation, we study the thermal rectification of an asymmetric double-stranded molecular structure system. We investigate the influence of temperature, intra- and inter-chain interaction and the system size on the thermal rectification effect of the asymmetric double- chain system. It is reported that the intra- and the inter-chain interaction have an advantage on the rectification efficiency. The rectification efficiency goes to a stable value at a large system size. This phenomenon is also explained by the power spectra of the inter-particles, which is similar to the situation of the single chain system.