One-port SAW resonator on diamond made of isotopically enriched 12C
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2019-10-01 |
| Authors | Satoshi Fujii, Tokuyuki Teraji, Takahiro Shimaoka, Kimiyoshi Ichikawa, Satoshi Koizumi |
| Institutions | National Institute for Materials Science, National Institute of Technology Okinawa College |
Abstract
Section titled “Abstract”We herein investigated surface acoustic wave (SAW) filters made of diamond and demonstrated that SAW resonators of 5 GHz band can be easily realized. Diamond has been previously studied for application in power devices and quantum computers. In particular, <sup xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>12</sup> C diamond has been applied to quantum computers using nitrogen-vacancy (NV) centers. We fabricated a SAW resonator for <sup xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>12</sup> C isotopically enriched diamond. Our resonator has a resonance frequency of 6 GHz and an anti-communicating frequency of 13 GHz. In the case of the Sezawa mode, the sound speed increased by 30%. We also found that the Young’s modulus doubled with the removal of a small percentage of <sup xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>13</sup> C. However, the reason for high coupling factor is yet to be discovered.