Volume 94, Number 3, May 2011
|Number of page(s)||3|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||28 April 2011|
Relationship between negative differential thermal resistance and ballistic transport
Laboratory of Quantum Information Technology, Institute of Condensed Matter Physics, School of Physics and Telecommunication Engineering, South China Normal University - 510006 Guangzhou, China
2 Institute of Modern Physics, Chinese Academy of Sciences, and Department of Physics, Lanzhou University 730000 Lanzhou, China
Accepted: 28 March 2011
In previous paper (Zhong W.-R. et al., Phys. Rev. E, 79 (2009) 050103(R)), it had been found that in the two-segment Frenkel-Kontorova (FK) model, transition from the exhibition to the nonexhibition of negative differential thermal resistance (NDTR) is consistent with the crossover from the ballistic to diffusive transport. It seems that the NDTR is induced by ballistic transport. When we further study ballistic transport in the two-segment Morse on-site potential model, it is found that no crossover from the ballistic to diffusive transport occurs accompanying transition from the exhibition to the nonexhibition of NDTR. There is always ballistic transport. Therefore, ballistic transport is not the sufficient condition of NDTR.
PACS: 44.10.+i – Heat conduction / 05.60.Cd – Classical transport / 07.20.-n – Thermal instruments and apparatus
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.