%0 Journal Article
%T Temperature independence of pressure-induced amorphization of the phase-change memory alloy Ge2Sb2Te5
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM)
%+ Center for Applied Near-Field Optics Research (CanFor)
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%+ European Synchrotron Radiation Facility (ESRF)
%A Krbal, Milos
%A Kolobov, Alexander
%A Haines, Julien
%A Pradel, Annie
%A Ribes, Michel
%A Paul, Fons
%A Tominaga, J.
%A Levelut, Claire
%A Le Parc, Rozenn
%A Hanfland, Michael
%< avec comité de lecture
%Z ICGICMMM:08-209
%@ 0003-6951
%J Applied Physics Letters
%I American Institute of Physics
%V 93
%P 031918
%8 2008-07-25
%D 2008
%R 10.1063/1.2956409
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles
%X n the temperature range from room temperature to about 150 °C, the prototypic phase-change material Ge2Sb2Te5 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.
%G English
%L hal-00341455
%U https://hal.science/hal-00341455
%~ CNRS
%~ UNIV-MONTP1
%~ UNIV-MONTP2
%~ ENSC-MONTPELLIER
%~ ICG
%~ LCVN
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ UM1-UM2
%~ TEST2-HALCNRS