晶体-熔体相变对大块Ge2Sb2Te5电学性能的影响

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials Pub Date : 2025-06-30 DOI:10.1134/S0020168525700335

P. I. Lazarenko

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引用次数: 0

摘要

利用差示扫描量热法、热重法和温度相关电阻测量，在室温至750℃范围内研究了合成的多晶Ge2Sb2Te5材料（sp. gr. P \(\bar {3}\) m1）的晶体-熔体相变。测定了该材料熔炼过程的特征温度和熔炼焓，并将其熔炼归类为半导体-半导体相变。得出的结论是，晶体材料中原子间相互作用的主要共价组分在熔化后保持不变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Changes in Electrical Properties of Bulk Ge2Sb2Te5 as a Result of the Crystal–Melt Phase Transition

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Changes in Electrical Properties of Bulk Ge2Sb2Te5 as a Result of the Crystal–Melt Phase Transition

The crystal–melt phase transition of a synthesized polycrystalline Ge₂Sb₂Te₅ material (sp. gr. P\(\bar {3}\)m1) has been studied using differential scanning calorimetry, thermogravimetry, and temperature-dependent electrical resistance measurements in the range from room temperature to 750°C. Characteristic temperatures of the melting process and the enthalpy of fusion of this material have been determined, and its melting has been classified as a semiconductor–semiconductor phase transition. The conclusion has been made that the predominantly covalent component of interatomic interaction in the crystalline material remains unchanged upon melting.

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.