Quartz tuning fork as a probe of surface oscillations

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
113 Downloads (Pure)

Abstract

Quartz tuning forks are high-quality mechanical oscillators widely used in low temperature physics as viscometers, thermometers, and pressure sensors. We demonstrate that a fork placed in liquid helium near the surface of solid helium is very sensitive to the oscillations of the solid-liquid interface. We developed a double-resonance read-out technique, which allowed us to detect oscillations of the surface with an accuracy of 1 Å in 10 s. Using this technique, we have investigated crystallization waves in 4He down to 10 mK. In contrast to previous studies of crystallization waves, our measurement scheme has very low dissipation, on the order of 20 pW, which allows us to carry out experiments even at sub-mK temperatures. We propose to use this scheme in the search for crystallization waves in 3He, which exist only at temperatures well below 0.5 mK. The suggested technique can also be used for accurate displacement detection in a large variety of systems.

Original languageEnglish
Article number071601
Pages (from-to)1-5
JournalApplied Physics Letters
Volume110
Issue number7
DOIs
Publication statusPublished - 13 Feb 2017
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Quartz tuning fork as a probe of surface oscillations'. Together they form a unique fingerprint.

  • Projects

    QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids

    Thanniyil Sebastian, A., Kaikkonen, J., Kamada, M., Manninen, J., Tan, Z., Will, M., Todoshchenko, I., Hakonen, P., Zavyalov, V., Sergeicheva, E., Song, X., Tong, F., Kumar, M., Hüttel, A., Korhonen, K. & Haque, M.

    05/11/201531/08/2021

    Project: EU: ERC grants

    Centre of Excellence in Low Temperature Quantum Phenomena and Devices

    Thanniyil Sebastian, A., Kaikkonen, J., Elo, T., Cox, D., Kumar, M., Hakonen, P. & Song, X.

    01/01/201523/02/2018

    Project: Academy of Finland: Other research funding

    Equipment

  • Cite this