AgInSbTe, or silver-indium-antimony-tellurium, is a phase change material from the group of chalcogenide glasses, used in rewritable optical discs (such as rewritable CDs) and phase-change memory applications. It is a quaternary compound of silver, indium, antimony, and tellurium.
During writing, the material is first erased, initialized into its crystalline state, with long, lower-intensity laser irradiation. The material heats up to its crystallization temperature, but not up to its melting point, and crystallizes in a metastable face-centered cubic structure. Then the information is written on the crystalline phase, by heating spots of it with short (<10 ns), high-intensity laser pulses; the material locally melts and is quickly cooled, remaining in the amorphous phase. As the amorphous phase has lower reflectivity than the crystalline phase, the bitstream can be recorded as "dark" amorphous spots on the crystalline background. At low linear velocities, clusters of crystalline material can exist in the amorphous spots.[1]
Another similar material is GeSbTe, offering a lower linear density, but with higher overwrite cycles by 1-2 orders of magnitude. It is used in pit-and-groove recording formats, often in rewritable DVDs.
^Yem-Yeu Chang; Lih-Hsin Chou (10 May 2005). "Laser-Induced Crystallization in AgInSbTe Phase-Change Optical Disk". Japanese Journal of Applied Physics. 44 (5A): 3042–3048. Bibcode:2005JaJAP..44.3042C. doi:10.1143/jjap.44.3042. S2CID 53375226. Archived from the original on 27 September 2007.
AgInSbTe, or silver-indium-antimony-tellurium, is a phase change material from the group of chalcogenide glasses, used in rewritable optical discs (such...
rewritable CDs. AgInSbTe is known as a growth-dominated material while GeSbTe is known as a nucleation-dominated material. In GeSbTe, the nucleation process...
weight of constituent elements; i.e., S > Se > Te. Chalcogenide compounds such as AgInSbTe and GeSbTe are used in rewritable optical disks and phase-change...
developed and manufactured by Corning, AGC Inc.'s Dragontrail and Schott AG's Xensation. Glass is in widespread use in optical systems due to its ability...
lenses become clear. Ag − e − ⟶ Ag + {\displaystyle {\ce {Ag - e^- -> Ag^+}}} Ag + + Cl − ⟶ AgCl {\displaystyle {\ce {Ag^+ + Cl^- -> AgCl}}} With the photochromic...
2013-09-06. Archived from the original on 2016-06-04. Retrieved 2016-05-15. "Sto AG, Cabot Create Aerogel Insulation". Construction Digital. 15 November 2011...
slightly different compositions under different trade names: Borofloat of Schott AG, a borosilicate glass, which is produced to flat glass in a float process...
original on 2016-08-16. Retrieved 2017-02-08. Mears, R.J.; Reekie, L.; Poole, S.B.; Payne, D.N. (30 January 1986). "Low-threshold tunable CW and Q-switched...
Freedman (2020), p. 1157. Young & Freedman (2020), p. 1143,1163,1175. MV Klein & TE Furtak, 1986, Optics, John Wiley & Sons, New York ISBN 0-471-87297-0. Maxwell...
Ternary Liquidus Temperatures by Statistical Modeling of Binary and Ternary Ag–Al–Sn–Zn Systems". ACS Omega. 2 (8). American Chemical Society (ACS): 5271–5282...
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