Experimental study of the proposed super-thermal-conductor: BAs

Bing Lv, Yucheng Lan, Xiqu Wang, Qian Zhang, Yongjie Hu, Allan J. Jacobson, David Broido, Gang Chen, Zhifeng Ren, Ching Wu Chu

研究成果: Article同行評審

52 引文 斯高帕斯(Scopus)

摘要

Recent calculations predict a super-thermal-conductivity of ∼2000 Wm-1 K-1, comparable to that of diamond, in cubic boron arsenide (BAs) crystals, which may offer inexpensive insulators with super-thermal-conductivity for microelectronic device applications. We have synthesized and characterized single crystals of BAs with a zinc blende cubic structure and lattice parameters of a = 4.7830(7) Å. A relatively high thermal conductivity of ∼200 Wm-1 K-1 is obtained, close to those of best non-carbon crystal insulators, such as SiC, although still an order of magnitude smaller than the value predicted. Based on our XPS, X-ray single crystal diffraction, and Raman scattering results, steps to achieve the predicted super-thermal conductivity in BAs are proposed.

原文English
文章編號074105
期刊Applied Physics Letters
106
發行號7
DOIs
出版狀態Published - 2015 2月 16

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

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