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We have presented the data showing the drift of PCM parameters over a broad range of times. We have proposed a simple analytical model to explain our observations through inherent structural relaxations in a glass and described by the double well potential concept that predicts the temporal and saturation dependencies of drift phenomena. Our model correctly… (More)
This work represents a clustering technique, based on the Balanced Iterative Reducing and Clustering using Hierarchies (BIRCH) algorithm and LSA-methods for clustering large, high dimensional datasets. We present a document model and a clustering tool for processing texts in Russian and English languages and compare our results with other clustering… (More)
Memory elements existing and under research are compared for their suitability in computer memory applications. Cross point arrays of phase change elements with matched isolation devices are found to be particularly attractive and the challenge to model them is analyzed.