'SELF-CONSISTENT' PHONONS IN AMORPHOUS Si AND Ge.

Michael Thorpe

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The vibrations of small clusters of atoms are studied using self-consistent boundary conditions which simulate the infinite medium. The Born model for Si and Ge is used with nearest neighbour central and non-central forces. An external potential is imposed upon the surface atoms and the coefficients appearing in this potential are determined by demanding that the mean square amplitude of vibration of the surface atoms is the same as that of the interior atoms. As an example, the procedure is applied to five atoms in a tetrahedral arrangement, i. e. one interior and four surface atoms.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
Place of PublicationLondon, Engl
PublisherTaylor & Francis Ltd
Pages835-839
Number of pages5
StatePublished - 1800
Externally publishedYes
EventInt Conf on Amorphous and Liq Semicond, 5th, Proc - Garmsich-Partenkirchen, W Ger
Duration: Sep 3 1973Sep 8 1973

Other

OtherInt Conf on Amorphous and Liq Semicond, 5th, Proc
CityGarmsich-Partenkirchen, W Ger
Period9/3/739/8/73

ASJC Scopus subject areas

  • Engineering(all)

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