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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Pressure tunes electrical resistivity by four orders of magnitude in amorphous Ge_2Sb_2Te_5 phase-change memory alloy
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Pressure tunes electrical resistivity by four orders of magnitude in amorphous Ge_2Sb_2Te_5 phase-change memory alloy

机译:压力将非晶Ge_2Sb_2Te_5相变存储合金的电阻率调整四个数量级

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摘要

Emerging phase-change memory, a new type of nonvolatile random-access memory, promises faster, denser, and reliable data storage that could replace the current flash memories (1). The application of a phase-change material in such devices takes advantage of the reversible switch and the large property difference between two contrasting (amorphous and crystalline) states. A prototypical phase-change material already used in random-access memories is the chalcogenide Ge2Sb2Te5 alloy (GST225, abbreviated as GST). Upon crystallization at around 420 K from
机译:新兴的相变存储器是一种新型的非易失性随机存取存储器,它有望提供更快,更密集,更可靠的数据存储,从而可以替代当前的闪存(1)。相变材料在此类设备中的应用利用了可逆开关和两个对比(非晶态和结晶态)之间较大的特性差异。已经在随机存取存储器中使用的一种典型的相变材料是硫族化物Ge2Sb2Te5合金(GST225,缩写为GST)。在约420 K时结晶

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    Department of Materials'Science and Engineering, the Johns Hopkins University, Baltimore, MD 21218;

    Department of Materials'Science and Engineering, the Johns Hopkins University, Baltimore, MD 21218 Chemical and Engineering Materials Division,Oak Ridge National Laboratory, Oak Ridge, TN 37381;

    High Pressure Synergetic Consortium, Carnegie Institution of Washington, Argonne, IL 60439 State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, China;

    School of Physics, Astronomy and Computational Sciences,George Mason University, Fairfax, VA 22030;

    High Pressure Collaborative Access Team, Carnegie Institution of Washington, Argonne, IL 60439;

    High Pressure Synergetic Consortium, Carnegie Institution of Washington, Argonne, IL 60439;

    Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100022, China;

    Department of Materials'Science and Engineering, the Johns Hopkins University, Baltimore, MD 21218;

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