Crystallization behavior applications and materials science of Sb70Te30 and Ag3In5Sb60Te32chalcogenide materials for optical media applications

Addition of In and Ag iota eutectic Sb 70 Te 30 fast-growth material was studied. We explored the optical transitions and crystallization kinetics of Sb 70 Te 30 and Ag 3 In 5 Sb 60 Te 32 recording films. The results showed that Ag 3 In 5 Sb 60 Te 32 has a higher crystallization temperatUte Suit a similar melting point compared to Sb 70 Te 30 . In both the crystalline and amorphous states, addition of Ag and In increased the refractive index and decreased the extinction coefficient of Sb 70 Te 30 . Ag 3 In 5 Sb 60 Te 32 has better termal stability and a lower crystallization speed than Sb 70 Te 30 film.