Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.80.052301
Title: Edge states induce boundary temperature jump in molecular dynamics simulation of heat conduction
Authors: Jiang, J.-W. 
Chen, J.
Wang, J.-S. 
Li, B. 
Issue Date: 7-Aug-2009
Citation: Jiang, J.-W., Chen, J., Wang, J.-S., Li, B. (2009-08-07). Edge states induce boundary temperature jump in molecular dynamics simulation of heat conduction. Physical Review B - Condensed Matter and Materials Physics 80 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.80.052301
Abstract: We point out that the origin of the commonly occurred boundary temperature jump in the application of Nose-Hoover heat bath in molecular dynamics is related to the edge modes, which are exponentially localized at the edge of the system. If heat baths are applied to these edge regions, the injected thermal energy will be localized thus leading to a boundary temperature jump. The jump can be eliminated by shifting the location of heat baths away from edge regions. Following this suggestion, a very good temperature profile is obtained without increasing any simulation time and the accuracy of thermal conductivity calculated can be largely improved. © 2009 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96287
ISSN: 10980121
DOI: 10.1103/PhysRevB.80.052301
Appears in Collections:Staff Publications

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