Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 49, Pages 41855-41860Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b16033
Keywords
nanoscale; electric-field control; meta-material; thermal engineering; phase-change memory
Funding
- Engineering and Physical Sciences Research Council (United Kingdom)
- SUTD Grant Program
- Ministry of Education (Singapore) Grant Program
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We describe how the crystallization kinetics of a suite of phase-change systems can be controlled by using a single-shot treatment via initial crystallization effects. Ultrarapid and highly stable phase-change structures (with excellent characteristics), viz. conventional and sub-10 nm sized cells (400 ps switching and 368 K for 10 year data retention), stackable cells (900 ps switching and 1 x 10(6) cycles for similar switching-on voltages), and multilevel configurations (800 ps switching and resistance-drift power-law coefficients <0.11) have been demonstrated. Material measurements and thermal calculations also reveal the origin of the pretreatment-assisted increase in crystallization rates and the thermal diffusion in chalcogenide structures, respectively.
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