Experimental study of the proposed super-thermal-conductor: BAs
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Lv2015APL_BAs.pdf
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Author(s)
Lv, Bing
Lan, Yucheng
Wang, Xiqu
Zhang, Qian
Hu, Yongjie
Jacobson, Allan J.
Broido, David
Chen, Gang
Ren, Zhifeng
Chu, Ching-Wu
Date Issued
February 2015
Journal
Applied Physics Letters
Publisher
AIP Publishing
Citation
Lv, Bing et al. “Experimental Study of the Proposed Super-Thermal-Conductor: BAs.” Applied Physics Letters 106, 7 (February 2015): 074105 © 2015 AIP Publishing LLC
Version
Final published version
Abstract
Recent calculations predict a super-thermal-conductivity of ∼2000 Wm-1K-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-1K-1is 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.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1063/1.4913441
