Investigation of thermal conductivity of nitride mixed crystals and superlattices by molecular dynamics

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Abstract

The thermal conductivities of AlxGa1-xN and In xGa1-xN mixed crystal and AlN/GaN superlattices were investigated by molecular dynamics simulation. We used Stillinger-Weber potentials, and Green-Kubo's formula was employed to calculate thermal conductivity. The results showed that the value of thermal conductivity of Al.0.5Ga0.5N was about 1/20 smaller than that of GaN. It was also found that the thermal conductivity of AlN/GaN superlattices along the c-axis, which is parallel to the growth direction, was much less than that of bulk GaN.

Original languageEnglish
Pages (from-to)1695-1699
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume3
DOIs
Publication statusPublished - Jul 31 2006
Event6th International Conference on Nitride Semiconductors, ICNS-6 - Bremen, Germany
Duration: Aug 28 2005Sep 2 2005

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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