Pressure-induced amorphization of quasibinary GeTe- Sb2 Te3: The role of vacancies

A. V. Kolobov; J. Haines; A. Pradel; M. Ribes; P. Fons; J. Tominaga; C. Steimer; G. Aquilanti; S. Pascarelli

doi:10.1063/1.2752016

Pressure-induced amorphization of quasibinary GeTe- Sb2 Te3: The role of vacancies

A. V. Kolobov, J. Haines, A. Pradel, M. Ribes, P. Fons, J. Tominaga, C. Steimer, G. Aquilanti, S. Pascarelli

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The authors demonstrate that the cubic phase of quasibinary GeTe- Sb2 Te3 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.

Original language	English
Article number	021911
Journal	Applied Physics Letters
Volume	91
Issue number	2
DOIs	https://doi.org/10.1063/1.2752016
Publication status	Published - 2007 Aug 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Kolobov, A. V.

AU - Haines, J.

AU - Pradel, A.

AU - Ribes, M.

AU - Fons, P.

AU - Tominaga, J.

AU - Steimer, C.

AU - Aquilanti, G.

AU - Pascarelli, S.

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