Thermo-kinetics analysis of Ge2Sb2Te5 amorphous materials containing Nb, Mo and W elements

Mitsuaki Fujita, Sho Otaka, Akio Fuwa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Ge2Sb2Te5 has been used in DVD disk memory devices where phase transition phenomena between amorphous (glassy) and crystalline state has been utilized reflecting its optics characteristics in laser illumination. In this study, Ge2Sb2Te5 amorphous glassy film was firstly synthesized on glass substrate by a magnetron sputtering device and, then, crystallization kinetics from the amorphous state to crystalline state was investigated during heating treatment using a DSC (differential scanning calorimetry) and its behavior was studied by the Kissinger kinetics. The effect of Nb, Mo and W addition to Ge2Sb 2Te5 during its crystallization has been also investigated for improved performance.

    Original languageEnglish
    Title of host publicationThe Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III
    Pages1040-1051
    Number of pages12
    Volume2
    Publication statusPublished - 2009
    Event3rd International Conference on Processing Materials for Properties 2008, PMP III - Bangkok
    Duration: 2008 Dec 72008 Dec 10

    Other

    Other3rd International Conference on Processing Materials for Properties 2008, PMP III
    CityBangkok
    Period08/12/708/12/10

    Keywords

    • Amorphous crystalline
    • Optical memory
    • Phase change

    ASJC Scopus subject areas

    • Materials Science(all)

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  • Cite this

    Fujita, M., Otaka, S., & Fuwa, A. (2009). Thermo-kinetics analysis of Ge2Sb2Te5 amorphous materials containing Nb, Mo and W elements. In The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III (Vol. 2, pp. 1040-1051)