期刊
APPLIED PHYSICS LETTERS
卷 121, 期 19, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0129651
关键词
-
资金
- Russian Science Foundation [20-12-000-97]
This paper presents an integrated measuring system using a diamond anvil cell and a high overtone bulk acoustic resonator for studying the behavior of materials under high pressure. The system offers advantages such as the application of microwave frequency, measurement of Q-factor changes under pressure, and a compact size.
This paper presents an integrated measuring system combining a diamond anvil cell (DAC) and a high overtone bulk acoustic resonator (HBAR) operating at the microwave frequency band as 2.8-8.8 GHz. We have studied several metallic (W, Zr) and semiconductor (Si) samples under pressure up to & SIM;16 GPa. As an HBAR, we have used the Al/Al0.72Sc0.28N/Mo/(100) diamond structure utilizing a piezoelectric aluminum-scandium nitride film. We have observed that under pressure, the Q-factor of the HBAR decreases but remains at the value of 2500-3000, which is suitable for our experiments. It is demonstrated that the above system can be used for studying the behavior of various solids under high pressure, the pressure-induced phase transition in Zr, the registration of plastic deformations, and their relaxation in metals. Here, we discussed the phenomenon of an acoustic wave passing through a tungsten layer under a pressure of & SIM;5.5 GPa. The integrated DAC & HBAR measuring system has demonstrated some practical advantages over known ultrasonic systems combined with the DAC as the possibility of applying a microwave operational frequency, the measurement of a Q-factor change under pressure, and the miniature size of a sensitive HBAR element. The application of the built-in DAC & HBAR system will hopefully allow more accurate studies on materials in the GPa pressure range of a DAC. Published under an exclusive license by AIP Publishing.
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