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Article Dans Une Revue Applied Physics Letters Année : 2007

Pressure-induced amorphization of quasibinary GeTe-Sb2Te3: The role of vacancies

Résumé

The authors demonstrate that the cubic phase of quasibinary GeTe-Sb2Te3 alloys (GST), the material of choice in phase-change optical recording (such as digital versatile disk-random access memory) can be rendered amorphous by the application of hydrostatic pressure. The amorphization pressure depends on the GST composition. The pressure-induced amorphous phase possesses a local structure around Ge atoms similar to that of laser-amorphized GST. They argue that vacancies are crucial for the pressure-induced amorphization.

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Matériaux
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Dates et versions

hal-00185148 , version 1 (05-11-2007)

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Alexander Kolobov, Julien Haines, Annie Pradel, Michel Ribes, P. Fons, et al.. Pressure-induced amorphization of quasibinary GeTe-Sb2Te3: The role of vacancies. Applied Physics Letters, 2007, pp.021911. ⟨10.1063/1.2752016⟩. ⟨hal-00185148⟩
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