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Title: Fast phase transitions induced by picosecond electrical pulses on phase change memory cells
Authors: Wang, W.J.
Shi, L.P.
Zhao, R.
Lim, K.G.
Lee, H.K.
Chong, T.C. 
Wu, Y.H. 
Issue Date: 2008
Citation: Wang, W.J., Shi, L.P., Zhao, R., Lim, K.G., Lee, H.K., Chong, T.C., Wu, Y.H. (2008). Fast phase transitions induced by picosecond electrical pulses on phase change memory cells. Applied Physics Letters 93 (4) : -. ScholarBank@NUS Repository.
Abstract: The reversible and fast phase transitions induced by picosecond electrical pulses are observed in the nanostructured GeSbTe materials, which provide opportunities in the application of high speed nonvolatile random access memory devices. The mechanisms for fast phase transition are discussed based on the investigation of the correlation between phase transition speed and material size. With the shrinkage of material dimensions, the size effects play increasingly important roles in enabling the ultrafast phase transition under electrical activation. The understanding of how the size effects contribute to the phase transition speed is of great importance for ultrafast phenomena and applications. © 2008 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.2963196
Appears in Collections:Staff Publications

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