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Thermodynamic Stability of Nonequilibrium Ordered Semiconductor Alloys
Author(s) -
Asomoza R.,
Elyukhin V.A.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200007)220:1<85::aid-pssb85>3.0.co;2-y
Subject(s) - metastability , ternary operation , materials science , non equilibrium thermodynamics , thermodynamics , semiconductor , epitaxy , degree (music) , chemical stability , condensed matter physics , decomposition , spinodal decomposition , atmospheric temperature range , stability (learning theory) , phase (matter) , chemistry , nanotechnology , physics , optoelectronics , organic chemistry , layer (electronics) , machine learning , computer science , acoustics , programming language
The stability of the III–V ternary epitaxially ordered alloys with respect to decomposition and change of the long‐range order degree is discussed by a thermodynamic analysis. The “CuPt”‐type ordered alloys are more stable with respect to decomposition than random, but are unstable with respect to disordering at growth temperatures. The GaAs x N 1— x and GaP x N 1— x “CuPt”‐ and “WC”‐type ordered alloys can be stable, metastable and unstable at room temperature with respect to disordering in dependence on the composition and the long‐range order degree. Other “CuPt”‐ and “WC”‐type ternary ordered alloys are unstable with respect to disordering at room temperature.