phase change memory materials

Directly from glassy to crystal: Phase change material switches state without entering liquid phase

By Lisa McDonald / August 27, 2019

Phase change materials are an excellent way to store data—if you know how to effectively switch between the material’s glassy and crystal states. Researchers at the University of Arizona and RWTH Aachen University discovered unlike most glasses, the PCM Ge2Sb2Te5 can switch directly from glassy to crystal without entering the liquid phase.

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Other materials stories that may be of interest

By / May 15, 2012

This illustration depicts the shape of diamond tips used to apply pressure that uncovered important new properties in the memory medium GST. The inset represents the atomic structure of amorphous…

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Nonvolatile phase-change memory devices are three steps closer to reality

By Eileen De Guire / July 8, 2011

IBM Research chart compares memory technologies. Credit: IBM Research Two new studies serve as bookend demonstrations of the near-term potential for phase-change memory materials for use as nonvolatile data storage…

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Follow up: Chalcogenide phase-change memory materials for high-speed, low-power data storage

By Eileen De Guire / June 9, 2011

I’ve received some follow-up information from Gang Chen, whose work on phase-change memory chalcogenide materials I wrote about earlier this week. He provided some numbers that illustrate the potential for…

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Chalcogenide phase-change memory materials for high-speed, low-power data storage

By Eileen De Guire / June 6, 2011

Ohio University graduate student, Chandrasiri Ihalawela discusses his work on telluride-base phase change memory materials with SVRNL’s Kevin Fox. Last week the University of California, San Diego announced that a…

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