Glass-forming tendency, percolation of rigidity, and onefold-coordinated atoms in covalent networks

P. Boolchand, M. F. Thorpe

Research output: Contribution to journalArticle

102 Scopus citations


A three-dimensional covalent network of N atoms possessing a fraction (nr/N) of r-fold-coordinated atoms will, in general, display percolation of rigidity at an average coordination number r=2.4-0.4(n1/N), where n1/N represents the fraction of onefold-coordinated atoms. As an example, we show how these ideas can elucidate the glass-forming region in the Ge-S-I ternary system.

Original languageEnglish (US)
Pages (from-to)10366-10368
Number of pages3
JournalPhysical Review B
Issue number14
StatePublished - Jan 1 1994


ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this