Incipient localisation and electron-electron correlation effects in metallic glass alloys
Incipient localisation and electron-electron correlation effects in metallic glass alloys
复制标题
金属玻璃合金中的初始局域化和电子-电子相关效应
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
M. Howson
中科院分区：
文献类型：
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作者：
M. Howson
本文利用局域化标度模型和电子-电子相关效应模型的结果，详细讨论了金属玻璃合金电阻率随温度变化的一般形式。它示出，对于一个相对较低的电阻率的金属玻璃，通常会存在一个电阻最小值在低温下，而对于玻璃的较高的电阻率的电导率低于θ D应直接成正比于T，改变为平方根T的依赖性为更高的温度。这些预测，然后示出是根据新的测量Cu 50 Ti 50和Ti 50 Be 40 Z10合金。
The general form of the temperature dependence of resistivity in metallic glassy alloys is discussed in detail using the results of the scaling model of localisation and models of electron-electron correlation effects. It is shown that for a metallic glass of relatively low resistivity there would normally exist a resistance minimum at low temperatures, while for glasses of higher resistivity the conductivity below theta D should be directly proportional to T, changing to a square root T dependence for higher temperatures. These predictions are then shown to be in accordance with new measurements on Cu50Ti50 and Ti50Be40Z10 alloys.