Mechanical Response of 4He Films Adsorbed on Graphite with a Quartz Tuning Fork

Nihei, Fumikazu; Ideura, Kazuo; Kobayashi, Hajime; Taniguchi, Jun; Suzuki, Masaru

doi:10.1007/s10909-010-0254-8

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…The main application of tuning fork resonators is quartz tuning forks (QTFs) as self-sensing probes [ 111 ], which are excited by two electrodes to produce anti-phase oscillation [ 15 ]. Due to high stability and high-quality factor, QTFs can be used as mechanical sensors in magnetic force microscope [ 112 ], biological sensor [ 113 ], and microbalance [ 114 ]. With the development of tuning fork resonators, in order to be compatible with mature processing technology in the MEMS field, Si material or AlN material can be used as the tuning fork structure.…”

Section: Application Of Resonant Sensormentioning

confidence: 99%

The Recent Progress of MEMS/NEMS Resonators

et al. 2021

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MEMS/NEMS resonators are widely studied in biological detection, physical sensing, and quantum coupling. This paper reviews the latest research progress of MEMS/NEMS resonators with different structures. The resonance performance, new test method, and manufacturing process of single or double-clamped resonators, and their applications in mass sensing, micromechanical thermal analysis, quantum detection, and oscillators are introduced in detail. The material properties, resonance mode, and application in different fields such as gyroscope of the hemispherical structure, microdisk structure, drum resonator are reviewed. Furthermore, the working principles and sensing methods of the surface acoustic wave and bulk acoustic wave resonators and their new applications such as humidity sensing and fast spin control are discussed. The structure and resonance performance of tuning forks are summarized. This article aims to classify resonators according to different structures and summarize the working principles, resonance performance, and applications.

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Section: Application Of Resonant Sensormentioning

confidence: 99%

The Recent Progress of MEMS/NEMS Resonators

et al. 2021

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“…Here, we make a comment on 4 He films adsorbed on graphite ( 4 He/Gr). Tuning fork experiments for 4 He/Gr were carried out at 1.0 K, and the oscillation amplitude is 10 nm [6]. Figure 4 shows the comparison of the coverage dependence between Kr/Gr and 4 He/Gr.…”

Section: Comparison With 4 He Films Adsorbed On Graphitementioning

confidence: 99%

Mechanical response of Kr films adsorbed on graphite substrate with a quartz tuning fork

Kobayashi

Taniguchi

Suzuki

et al. 2010

J. Phys.: Conf. Ser.

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Abstract. We have developed a quartz-crystal microbalance (QCM) using a quartz tuning fork resonator, and have carried out experiments for Kr films adsorbed on a single crystalline graphite at LN2 temperature. For the monolayer film, the coupled mass to the oscillating substrate is significantly small until the film enters the commensurate (C) phase. It starts to increase at the C phase, and the increase in the coupled mass with respect to the coverage decreases at the coexistence phase between the C and the incommensurate (IC) phases. It is enhanced again when the film enters the IC phase. We compared the observed behavior with that of 5 MHz QCM experiments, and found that the sliding motion does not depend on oscillation frequency. IntroductionSliding motion of physisorbed films on the lateral oscillating substrate has attracted interest because of a study on the atomic-scale mechanism of sliding friction. Noble gas films adsorbed on graphite take the commensurate (C) and the incommensurate (IC) phases by changing the fractional coverage. By using these films, it is possible to make clear the relation between the sliding friction and the commensurability of film.We have already reported 5 MHz AT-cut quartz-crystal microbalance (QCM) experiments for Kr films adsorbed on a single-crystalline graphite (Kr/Gr) [1]. It was found that the coupled mass starts to increase at the C phase, and that this increase continues after the commensurateincommensurate (C-IC) transition. The observed behavior is different from a naive idea that films of the C phase do not slide easily because of their structural pinning [2].Thus motivated, we planned to measure the mechanical response of Kr/Gr when an inertial force acting on film is small. Since the inertial force is proportional to the product of the oscillation amplitude and the square of the angular frequency in the QCM technique, we developed QCM using a quartz tuning fork resonator, and carried out experiments for Kr/Gr. In this paper, we explain the present results of a 32 kHz quartz tuning fork of Kr/Gr, focusing on two topics: one is the relation between the coupled mass and the coverage of film, and the other is the sliding direction dependence. We also compare them with those of 5 MHz AT-cut QCM experiments.

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