Temperature independence of pressure-induced amorphization of the phase-change memory alloy Ge2 Sb2 Te5

M. Krbal, A. V. Kolobov, J. Haines, A. Pradel, M. Ribes, P. Fons, J. Tominaga, C. Levelut, R. Le Parc, M. Hanfland

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

In the temperature range from room temperature to about 150 °C, the prototypic phase-change material Ge2 Sb2 Te5 becomes amorphous upon hydrostatic compression. In the studied temperature range, the onset of amorphization is at about 15 GPa and the material completely amorphizes at 25 GPa; these values do not depend on temperature. Upon decompression, the amorphous phase is stable at lower temperatures, yet at higher temperatures (145 °C), the initial fcc phase is recovered upon decompression. A possible mechanism of pressure-induced amorphization and its implications for phase-change memories are discussed.

Original languageEnglish
Article number031918
JournalApplied Physics Letters
Volume93
Issue number3
DOIs
Publication statusPublished - 2008 Aug 4
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Temperature independence of pressure-induced amorphization of the phase-change memory alloy Ge2 Sb2 Te5'. Together they form a unique fingerprint.

  • Cite this

    Krbal, M., Kolobov, A. V., Haines, J., Pradel, A., Ribes, M., Fons, P., Tominaga, J., Levelut, C., Le Parc, R., & Hanfland, M. (2008). Temperature independence of pressure-induced amorphization of the phase-change memory alloy Ge2 Sb2 Te5. Applied Physics Letters, 93(3), [031918]. https://doi.org/10.1063/1.2956409