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

Mitsuaki Fujita; Sho Otaka; Akio Fuwa

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

Mitsuaki Fujita^*, Sho Otaka, Akio Fuwa

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III
Pages	1040-1051
Number of pages	12
Volume	2
Publication status	Published - 2009
Event	3rd International Conference on Processing Materials for Properties 2008, PMP III - Bangkok Duration: 2008 Dec 7 → 2008 Dec 10

Other

Other	3rd International Conference on Processing Materials for Properties 2008, PMP III
City	Bangkok
Period	08/12/7 → 08/12/10

Keywords

Amorphous crystalline
Optical memory
Phase change

ASJC Scopus subject areas

Materials Science(all)

Cite this

Thermo-kinetics analysis of Ge₂Sb₂Te₅ amorphous materials containing Nb, Mo and W elements. / Fujita, Mitsuaki; Otaka, Sho; Fuwa, Akio.

The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III. Vol. 2 2009. p. 1040-1051.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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, 3rd International Conference on Processing Materials for Properties 2008, PMP III, Bangkok, 08/12/7.

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AB - 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.

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