Open AccessEstimation of thermodynamic stability of isoperiodic epitaxial structures whith GaInSbAs and GaInAsP solid solutions
Author(s) -
E. Danilina,
A S Paschenko
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2086/1/012004
Subject(s) - spinodal decomposition , epitaxy , chemical stability , work (physics) , materials science , solid solution , alloy , thermodynamics , stability (learning theory) , spinodal , substrate (aquarium) , layer (electronics) , chemistry , phase (matter) , nanotechnology , composite material , metallurgy , physics , geology , oceanography , organic chemistry , machine learning , computer science
The work studied the thermodynamic stability of GaInSbAs, GaInAsP heterosystems on different substrates. The isotherms of spinodal decomposition caused by chemical changes in the internal energy of the alloy and by elastic stresses at the layer-substrate interface are obtained with the model of quasiregular solutions. It has been found that elastic stresses lead to an expansion of the region of thermodynamic stability of isoperiodic solid solutions for GaSb substrates and a decrease in the critical temperature. The developed model can be using to selection of the technological modes and parameters of epitaxial growth.