S. T. Pantelides, R. Car, P. J. Kelly, A. Oshiyama

Research output: Chapter in Book/Report/Conference proceedingChapter


Self-diffusion is the process by which host atoms migrate from one atomic site to another. The coefficient of self-diffusion is usually measured by using radioactive tracer host atoms. In general, self-diffusion is mediated by thermally created intrinsic defects, such as vacancies, self-interstitials, etc. These defects are created at surfaces, interfaces, voids, dislocations, and other extended defects, and migrate through the crystal. In this paper, we will review the arguments that have been advanced in support of the existence of amorphous regions in high-temperature Si. We will then review the recent theoretical results which provide a simple and systematic interpretation of the data without the need to invoke amorphous regions. Finally, we discuss the implications of these results concerning the possible existence of amorphous regions.

Original languageEnglish (US)
Title of host publicationPhys of Disord Mater
PublisherPlenum Press (Inst for Amorphous Stud Ser)
Number of pages9
ISBN (Print)0306420740
StatePublished - Dec 1 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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