An investigation of thermal conductivity of nitride-semiconductor nanostructures by molecular dynamics simulation

Takahiro Kawamura, Yoshihiro Kangawa, Koichi Kakimoto

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We investigated the thermal conductivities of AlN/GaN superlattices (SLs) by molecular dynamics simulations. We used Stillinger-Weber potentials, and we used Green-Kubo's formula to calculate thermal conductivity. It was found that thermal conductivities of SLs decrease as the SL period increases in the case of short periods, whereas thermal conductivities increase as the SL period increases in the case of long periods. We also estimated the effect of quantum dots (QDs) in AlN/GaN SLs on thermal conductivity. We found that thermal conductivities parallel to the interfaces of SLs with QDs were smaller than those without QDs.

Original languageEnglish
Pages (from-to)251-253
Number of pages3
JournalJournal of Crystal Growth
Volume298
Issue numberSPEC. ISS
DOIs
Publication statusPublished - Jan 2007

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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