Phase-change materials comprise a unique portfolio of properties, which enables their use in non-volatile data storage devices. In particular, this material class is characterized by a pronounced contrast of optical and electrical properties between crystalline and amorphous state, while switching between these states proceeds on the timescale of a few nanoseconds.
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Lencer, D., Wuttig, M. (2009). Phase-Change Materials For Non-Volatile Data Storage. In: Reithmaier, J.P., Petkov, P., Kulisch, W., Popov, C. (eds) Nanostructured Materials for Advanced Technological Applications. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9916-8_47
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