The low temperature specific heat of amorphous alloys (invited)
The low temperature specific heat of amorphous alloys (invited)
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DOI：
10.1063/1.329715
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发表时间：
1981-03
影响因子：
3.2
通讯作者：
D. Onn
中科院分区：
文献类型：
--
作者：
D. Onn
近年来，非晶态金属合金，特别是过渡金属-准金属玻璃的可用性增加，使得对低温比热（CP）的研究更多。讨论了声子（CL）、电子（CE）和磁效应（CM）对CP的贡献。在化学发光中，低能声子的贡献对组分、结构和退火状态敏感。在分析[FeNi] [PB]合金中的CE时，分裂带模型提供了对当前数据的最佳描述。自旋玻璃对CM的贡献提供了自旋玻璃异常附近的熵分布，并显示自旋玻璃态在[FeNi] [P14 B6]系列中持续高达20%的铁。在CP退火效应的初步结果和未来的研究领域，通过CP测量总结。
Increased availability of amorphous metal alloys, particularly the transition‐metal‐metalloid metallic glasses has permitted more studies of the low temperature specific heat (CP) in recent years. The contributions to CP due to phonons (CL), electrons (CE) and magnetic effects (CM) are discussed. In CL the contribution of low‐energy phonons is sensitive to composition, structure and annealing state. In analyzing CE in the [FeNi] [PB] alloys a split‐band model offers the best description of present data. Spin‐glass contributions to CM provide entropy distribution near the spin‐glass anomaly and show the spin‐glass state persisting up to 20% iron in the [FeNi] [P14B6] series. Preliminary results on annealing effects in CP are presented and areas for future research through CP measurements summarized.