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      Nanosecond switching in GeTe phase change memory cells

      , , , , , , ,

      Applied Physics Letters

      AIP Publishing

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          Phase-change materials for rewriteable data storage.

          Phase-change materials are some of the most promising materials for data-storage applications. They are already used in rewriteable optical data storage and offer great potential as an emerging non-volatile electronic memory. This review looks at the unique property combination that characterizes phase-change materials. The crystalline state often shows an octahedral-like atomic arrangement, frequently accompanied by pronounced lattice distortions and huge vacancy concentrations. This can be attributed to the chemical bonding in phase-change alloys, which is promoted by p-orbitals. From this insight, phase-change alloys with desired properties can be designed. This is demonstrated for the optical properties of phase-change alloys, in particular the contrast between the amorphous and crystalline states. The origin of the fast crystallization kinetics is also discussed.
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            Reversible Electrical Switching Phenomena in Disordered Structures

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              Rapid‐phase transitions of GeTe‐Sb2Te3pseudobinary amorphous thin films for an optical disk memory

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                Author and article information

                Journal
                Applied Physics Letters
                Appl. Phys. Lett.
                AIP Publishing
                0003-6951
                1077-3118
                July 27 2009
                July 27 2009
                : 95
                : 4
                : 043108
                Article
                10.1063/1.3191670
                © 2009
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