Low Thermal Conductivity In Ge2sb2te5-Siox For Phase Change Memory Devices
APPLIED PHYSICS LETTERS(2009)
Abstract
Nanometer scale Ge2Sb2Te5 (GST) domains formed by immiscible mixture of GST-SiOx at room temperature and 180 degrees C show remarkable suppression in electrical and thermal conductivity. Thermal boundary resistance with increased GST-SiOx interface becomes crucial to the reduction in thermal conductivity. These conductivity reductions concurrently result in the reduction in programming current and power consumption in phase change memory devices.
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Key words
antimony compounds, germanium compounds, phase change memories, silicon compounds, thermal conductivity
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