%0 Journal Article
%T Pressure-induced structural transitions in phase-change materials based on Ge-free Sb-Te alloys
%+ Center for Applied Near-Fiield Optics Research (CanFor)
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM)
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%+ GREMAN (matériaux, microélectronique, acoustique et nanotechnologies) (GREMAN - UMR 7347)
%+ European Synchrotron Radiation Facility (ESRF)
%A Krbal, Milos
%A Kolobov, Alex, V.
%A Fons, Paul
%A Haines, Julien
%A Pradel, Annie
%A Ribes, Michel
%A Piarristeguy, Andrea
%A Levelut, Claire
%A Le Parc, Rozenn
%A Agafonov, V.
%A Hanfland, Michael
%A Tominaga, J.
%< avec comité de lecture
%@ 1098-0121
%J Physical Review B: Condensed Matter and Materials Physics (1998-2015)
%I American Physical Society
%V 83
%P 024105
%8 2011-01-27
%D 2011
%R 10.1103/PhysRevB.83.024105
%Z PACS number(s): 81.40.Vw, 61.50.Ks, 62.50.−p
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles
%X We report on pressure-induced phase transitions in the Sb2Te and Ag11In6Sb55Te28 (AIST) phase change alloys used in optical recording media over a pressure range from ambient pressure to 40 GPa. The results clearly demonstrate the crucial role of dopants in sequences of high-pressure structural transformations and in the degree of reversion.We also demonstrate that prolonged exposure of AIST to high pressures leads to an additional phase transition that may have fatal consequences for process reversibility in repeated compression/decompression cycles.
%G English
%L hal-00634461
%U https://hal.science/hal-00634461
%~ UNIV-TOURS
%~ CNRS
%~ UNIV-MONTP1
%~ UNIV-MONTP2
%~ ENSC-MONTPELLIER
%~ ICG
%~ LCVN
%~ INC-CNRS
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ INSA-GROUPE
%~ INSA-CVL
%~ ANR
%~ UM1-UM2