研究等業績 - 原著論文 - 木下　幸則

Enhancement of Q factor in quartz tuning fork force sensors for atomic force microscopy through counter piezo excitation

KINOSHITA Yukinori, KAMO Yoshiki

Mechanical Engineering Journal ( 一般社団法人 日本機械学会 )  11 ( 4 ) 1 - 9   2024年06月  [査読有り]

研究論文（学術雑誌）   国内共著

<p>Quartz tuning forks (QTFs) are highly effective force sensors in frequency modulation atomic force microscopy (FM-AFM), owing to their inherently high quality factor (Q). This attribute significantly enhances force sensitivity and stability during surface imaging. Our study introduces a counter piezo driving scheme to restore the diminished Q of QTFs affected by mass imbalances, which may arise from geometric discrepancies or the attachment of a tip to one prong. The approach involves vibrating the two prongs of the QTF using piezo elements situated at the joint, applying differing voltages. This strategy adjusts the mechanical coupling between the prongs, thereby influencing the Q. Unlike traditional methods that focus on prong-mass tuning, this technique does not require intricate modifications to the prong structure. Experimental validation was achieved with asymmetrically structured QTFs featuring prongs of varying thickness. A notable increase in the Q was observed, several times higher than that achieved with single piezo element driving, depending on the degree of asymmetry. The findings were corroborated by finite element method simulations, which not only confirmed the substantial Q enhancement in tip-attached QTFs but also elucidated the underlying mechanism. It was demonstrated that precise tuning of piezo element voltages effectively aligns stress vectors at the joint, leading to highly efficient excitation of resonance oscillation, resulting in a significantly improved Q.</p>

DOI CiNii Research

Magnetic resonance force microscopy using ferromagnetic resonance of a magnetic tip excited by microwave transmission via a coaxial resonator

Yukinori Kinoshita, Yan Jun Li, Satoru Yoshimura, Hitoshi Saito and Yasuhiro Sugawara

Nanotechnology   28 ( 48 ) 485709   2017年11月  [査読有り]

研究論文（学術雑誌）   国内共著

Promoting Atoms into Delocalized Long-Living Magnetically Modified State Using Atomic Force Microscopy

Y. Kinoshita, R. Turanský, J. Brndiar, Y. Naitoh, Y. J. Li, L. Kantorovich, Y. Sugawara and I. Štich

Nano Letters   16 ( 12 ) 7490 - 7494   2016年10月  [査読有り]

研究論文（学術雑誌）   国内共著

DOI

Vertical atomic manipulation with dynamic AFM without tip change via a multi-step mechanism

J. Bamidele, S. H. Lee, Y. Kinoshita,R. Turanský,Y. Naitoh, Y. J. Li, Y. Sugawara, I.ˇStich, and L. Kantorovich

Nature Communications   5   4476 - 4482   2014年07月  [査読有り]

研究論文（学術雑誌）   国内共著

Image formation and contrast inversion in noncontact atomic force microscopy imaging of oxidized Cu(110) surfaces

J. Bamidele, Y. Kinoshita, R. Turanský, S. H. Lee, Y. Naitoh, Y. J. Li, Y. Sugawara, I. Štich, and L. Kantorovich

Physical Review B   ( 90 ) 035410 - 035417   2014年07月  [査読有り]

研究論文（学術雑誌）   国内共著

Growth models of coexisting p(2×1) and c(6×2) phases on an oxygen-terminated Cu(110) surface studied by noncontact atomic force microscopy at 78K

Yan Jun Li, Seung Hwan Lee, Yukinori Kinoshita, Zong Min Ma,Huanfei Wen, Hikaru Nomura, Yoshitaka Naitoh and Yasuhiro Sugawara

Nanotechnology   27   205702   2016年04月  [査読有り]

研究論文（学術雑誌）   国内共著

Alternating electric force microscopy: Static electric field gradient imaging in an air atmosphere for Ba0.7Sr0.3TiO3 ferroelectric thin film

J. Lu, Y. Kinoshita, G. Egawa, S. Yoshimura1, H. Asano and H. Saito

Journal of Applied Physics   112   124110 - 124115   2012年12月  [査読有り]

研究論文（学術雑誌）   国内共著

Magnetic domain structure imaging near sample surface with alternating magnetic force microscopy by using AC magnetic field modulated superparamagnetic tip

Y. Cao, S. Nakayama, P. Kumar, Y. Zhao, Y. Kinoshita, S. Yoshimura, and H. Saito

Nanotechnology   29 ( 30 ) 305502   2018年05月  [査読有り]

研究論文（学術雑誌）   国内共著

Stable contrast mode on TiO<inf>2</inf>(110) surface with metal-coated tips using AFM

Li Y.J., Huanfei Wen, Quanzhen Zhang, Yuuki Adachi, Eiji Arima, Yukinori Kinoshita, Hikaru Nomura, Zongmin Ma, Lili Kou, Yoshihiro Tsukuda, Yoshitaka Naitoh, Yasuhiro Sugawara, Rui Xu, Zhihai Cheng

Ultramicroscopy ( Ultramicroscopy )  191   51 - 55   2018年08月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

Pulsed magnetic field magnetic force microscope and evaluation of magnetic properties of soft magnetic tips

Yangdong Zheng,Satoru Yoshimura,Genta Egawa,Fu Zheng,Yukinori Kinoshita,Hitoshi Saito

Journal of Physics D   48 ( 33 )   2015年07月  [査読有り]

研究論文（学術雑誌）   国内共著

Chemical tip fingerprinting in scanning probe microscopy of an oxidized Cu(110) surface

J. Bamidele, Y. Kinoshita, R. Turanský, S. H. Lee, Y. Naitoh, Y. J. Li, Y. Sugawara, I. Štich, and L. Kantorovich

Physical Review B   86   155422-1 - 155422-1   2012年10月  [査読有り]

研究論文（学術雑誌）   国内共著

Force mapping of the NaCl(100)/Cu(111) Surface by Atomic Force Microscopy at 78 K

Y. J. Li, Y. Kinoshita, K. Tenjin, Z. M. Ma, L. Kou, Y. Naitoh, M. Kageshima, and Y. Sugawara

Japanese Journal of Applied Phyics   51   035201-1 - 035201-5   2012年02月  [査読有り]

研究論文（学術雑誌）   国内共著

DOI

Fabrication of sharp tungsten tip for atomic force microscopy by ion-beam sputtering

Y. Kinoshita, Y. J. Li, Y. Naitoh, and Y. Sugawara

Review of Scientific Instruments   82   1137071-1 - 1137071-5   2011年11月  [査読有り]

研究論文（学術雑誌）   国内共著

The influence of a Si cantilever tip with/without tungsten coating on noncontact atomic force microscopy imaging of a Ge(001) surface

Y. Naitoh, Y. Kinoshita, Y. J. Li, M. Kageshima, and Y. Sugawara

Nanotechnology   20   164011   2009年06月  [査読有り]

研究論文（学術雑誌）