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Boron Isotope Effect on the Thermal Conductivity of Boron Arsenide Single Crystals
Name
1910.02152.pdf
Description
Submitted version
Size
1.12 MB
Format
Adobe PDF
Checksum (MD5)
3c93ad348509c2ed223ba76f583f12b7
Author(s)
Sun, H
Chen, K
Gamage, GA
Ziyaee, H
Wang, F
Wang, Y
Hadjiev, VG
Tian, F
Chen, G
Ren, Z
Date Issued
2019
Journal
Materials Today Physics
Publisher
Elsevier BV
Version
Original manuscript
Abstract
© 2019 Elsevier Ltd Boron arsenide (BAs) with a zinc blende structure has recently been discovered to exhibit unusual and ultrahigh thermal conductivity (κ), providing a new outlook for research on BAs and other high thermal conductivity materials. Technology for BAs crystal growth has been continuously improving; however, the influence of boron isotopes, pure or mixed, on the thermal conductivity in BAs is still not completely clear. Here we report detailed studies on the growth of single crystals of BAs with different isotopic ratios and demonstrate that the κ of isotopically pure BAs is at least 10% higher than that of BAs grown from natural B. Raman spectroscopy characterization shows differences in scattering among various BAs samples. The presented results will be helpful in guiding further studies on the influence of isotopes on optimizing κ in BAs.
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
10.1016/j.mtphys.2019.100169
