TY - JOUR
T1 - Experimental study of the proposed super-thermal-conductor
T2 - BAs
AU - Lv, Bing
AU - Lan, Yucheng
AU - Wang, Xiqu
AU - Zhang, Qian
AU - Hu, Yongjie
AU - Jacobson, Allan J.
AU - Broido, David
AU - Chen, Gang
AU - Ren, Zhifeng
AU - Chu, Ching Wu
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015/2/16
Y1 - 2015/2/16
N2 - 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.
AB - 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.
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U2 - 10.1063/1.4913441
DO - 10.1063/1.4913441
M3 - Article
AN - SCOPUS:84923269807
SN - 0003-6951
VL - 106
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 7
M1 - 074105
ER -