Author(s): Xie, YaRu; Ren, ShuLiang; Gao, YuanFei; Liu, XueLu; Tan, PingHeng; Zhang, Jun

Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY Volume: 64 Issue: 8 Article Number: 287311 DOI: 10.1007/s11433-020-1710-6 Published: AUG 2021

Abstract: The acoustic modes of diamond are not only of profound significance for studying its thermal conductivity, mechanical properties, and optical properties, but also play a definite role in the performance of high-frequency and high-power acoustic wave devices. Here, we report on the bulk acoustic waves (BAWs) and surface acoustic waves (SAWs) of single-crystal diamond using angle-resolved Brillouin light scattering (BLS) spectroscopy. We identify two high-speed surface skimming bulk waves (SSBW) with acoustic velocities of 1.277x10(6) and 1.727x10(6) cm/s, respectively. Furthermore, we obtain the relationship between the velocity of arbitrary BAWs and that of BAWs propagating along the high-symmetric axis at different incident angles. In the community of diamond-based acoustic studies, our results may provide a valuable reference for fundamental research and device engineering.

Accession Number: WOS:000679685700001

ISSN: 1674-7348

eISSN: 1869-1927

Full Text: https://link.springer.com/article/10.1007%2Fs11433-020-1710-6