Crystallization behavior of Sb70Te30and Ag3In5Sb60Te32chalcogenide materials for optical media applications

✍ Scribed by Lee, M. L. ;Shi, L. P. ;Tian, Y. T. ;Gan, C. L. ;Miao, X. S.

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 319 KB
• Volume: 205
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200723398

✦ Synopsis

Abstract

Addition of In and Ag into 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 temperature but 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 thermal stability and a lower crystallization speed than Sb~70~Te~30~ film. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)