TITLE

Order-disorder transformation in ternary tetrahedral semiconductors

AUTHOR(S)
Zunger, Alex
PUB. DATE
January 1987
SOURCE
Applied Physics Letters;1/19/1987, Vol. 50 Issue 3, p164
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The recently discovered order-disorder transformations in pseudobinary semiconductor alloys AxB1-xC are shown to belong to a broader class of such transformations in AnB4-nC4 semiconducting compounds (e.g., chalcopyrites, for n=2). Strain energy, set up by the atomic size mismatch between the A–C and B–C bonds, is shown to control the nature of the state of order in chalcopyrites and pseudobinary alloys alike. These considerations lead to a classification of all bulk tetrahedral semiconductors into four classes of order-disorder characteristics.
ACCESSION #
9821902

 

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