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nanoMATERIALS nanoscale heat transport

Non-equilibrium MD simulations of heat transport in nano-materials

Launch Tool

This tool version is unpublished and cannot be run. If you would like to have this version staged, you can put a request through HUB Support.

Archive Version 1.1
Published on 18 Sep 2014 All versions

doi:10.4231/D3513TW8M cite this

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This tool will enable the users to calculate two heat transport properties: thermal conductivity and phonon relaxation time. The first one is to run thermal conductivity simulations on various Si/Ge structures by non-equilibrium MD with LAMMPS package. Pure Si/Ge bulks, pure Si/Ge square nanowires, or supperlattice Si/Ge nanolaminates and nanowires with different periodicity can be selected from the prebuilt structures. Also, users can create Si/Ge supperlattice structures with different sizes and the number of priods by their own. In addition to thermal conductivity, energies, temperature profiles, and atomic trajectories during the simulation will also be output. The second one is to run phonon relaxation time simulations on different bulk materials (e.g. Si and Ar) by spectral energy density analysis. Users can choose different temperature for their own needs. The phonon dispersion relation, relaxation time and mean free path with wave vector in 100 direction will be outputted., a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.