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- W2073200224 abstract "To date, slow Set operation speed and high Reset operation power remain to be important limitations for substituting dynamic random access memory by phase change memory. Here, we demonstrate phase change memory cell based on Ti0.4Sb2Te3 alloy, showing one order of magnitude faster Set operation speed and as low as one-fifth Reset operation power, compared with Ge2Sb2Te5-based phase change memory cell at the same size. The enhancements may be rooted in the common presence of titanium-centred octahedral motifs in both amorphous and crystalline Ti0.4Sb2Te3 phases. The essentially unchanged local structures around the titanium atoms may be responsible for the significantly improved performance, as these structures could act as nucleation centres to facilitate a swift, low-energy order-disorder transition for the rest of the Sb-centred octahedrons. Our study may provide an alternative to the development of high-speed, low-power dynamic random access memory-like phase change memory technology." @default.
- W2073200224 created "2016-06-24" @default.
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- W2073200224 date "2014-07-08" @default.
- W2073200224 modified "2023-10-05" @default.
- W2073200224 title "One order of magnitude faster phase change at reduced power in Ti-Sb-Te" @default.
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- W2073200224 doi "https://doi.org/10.1038/ncomms5086" @default.
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