Thermal conductivity of skutterudite thin films and superlattices
Thermal conductivity of skutterudite thin films and superlattices
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DOI：
10.1063/1.1329633
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发表时间：
2000-12
影响因子：
4
通讯作者：
D. Song;Wei Liu;T. Zeng;T. Borca-Tasciuc;Gang Chen;J. Caylor;T. Sands
中科院分区：
文献类型：
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作者：
D. Song;Wei Liu;T. Zeng;T. Borca-Tasciuc;Gang Chen;J. Caylor;T. Sands
给出了方钴矿薄膜随温度变化的横截面热导率的实验结果。所检查的薄膜包括 IrSb3、CoSb3 和 Ir0.5Co0.5Sb3 单层，以及通过脉冲激光沉积生长的 IrSb3/CoSb3 超晶格。采用微分3ω方法测量了这些薄膜在80至300 K范围内的跨面热导率。实验结果表明，与文献报道的相应块状样品相比，它们的热导率值显着降低。讨论了导致热导率降低的可能机制。
Experimental results on the temperature-dependent cross-plane thermal conductivity of skutterudite thin films are presented. The films examined include IrSb3, CoSb3, and Ir0.5Co0.5Sb3 single layers, and IrSb3/CoSb3 superlattices that are grown by pulsed-laser deposition. A differential 3ω method is used to measure the cross-plane thermal conductivity of these films from 80 to 300 K. The experimental results show a significant reduction in their thermal conductivity values compared to those of their corresponding bulk samples reported in literature. Possible mechanisms contributing to the thermal conductivity reduction are discussed.