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  • Takahiko Yanagitani
2019
Open Access

Frequency-switchable polarity-inverted BAW resonators based on PZT/PTO epitaxial films using difference in coercive field

Shimidzu, T., Mori, T. & Yanagitani, T., 2019 May 27, In : Applied Physics Letters. 114, 21, 212902.

Research output: Contribution to journalArticle

Open Access
2018

C-Axis Tilted ScAIN Film Shear Mode Resonators for Biosensing

Yazaki, H., Soutome, T., Karasawa, R., Takayanagi, S., Yoshida, K. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, 8580191. (IEEE International Ultrasonics Symposium, IUS; vol. 2018-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

High Efficiency Ultrasonic Transducer Using Polarity Inverted ZnO Film

Majima, T., Shimidzu, T. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, Vol. 2018-October. 8579933

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Investigation of Morphotropic Phase Boundary in Sputter-Grown Pb(Zrx, Ti1-x)03 Epitaxial Films

Noda, R., Shimidzu, T., Wasa, K. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, Vol. 2018-October. 8580154

Research output: Chapter in Book/Report/Conference proceedingConference contribution

PZT Epitaxial Thick Film for Ultrasonic Transducer at Frequencies below 100 MHz

Mazda, Y., Shimidzu, T. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, Vol. 2018-October. 8580215

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rapid wave velocity measurement by Brillouin scattering using coherent phonons induced by ScAlN piezoelectric thin-film transducer

Kawabe, M., Takayanagi, S., Ichihashi, H., Suzuki, M., Yanagitani, T. & Matsukawa, M., 2018 Jul 18, (Accepted/In press) In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

Research output: Contribution to journalArticle

ScAlN Free-Standing 0.1 mm Plates with 30-50 MHz Resonance Frequency

Masamune, C., Karasawal, R. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, Vol. 2018-October. 8579797

Research output: Chapter in Book/Report/Conference proceedingConference contribution

ScAlN thick film ultrasonic transducer in 40 MHz–80 MHz

Sano, K. H., Karasawa, R. & Yanagitani, T., 2018 Aug 23, (Accepted/In press) In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Shear Mode Polarity Inverted ScAIN Multilayer for Application to Transformer in Rectifying Antenna

Karasawa, R. & Yanagitani, T., 2018 Jan 1, In : IEEE International Ultrasonics Symposium, IUS. 2018-January, 8580083.

Research output: Contribution to journalConference article

Temperature Characteristics of ScAlN/SiO 2 BAW Resonators

Igeta, H., Totsuka, M., Suzuki, M. & Yanagitani, T., 2018 Jan 1, In : IEEE International Ultrasonics Symposium, IUS. 2018-January, 8580165.

Research output: Contribution to journalConference article

The Influence of Negative Ions Generation on the Arc-Melted and Hot Press Sintered Scal Alloy Targets to the Crystalline Orientation and kt 2 of the Scaln Films

Endo, Y., Karasawa, R., Takayanagi, S., Imakawa, M., Morisaka, K., Suzuki, Y. & Yanagitani, T., 2018 Dec 17, 2018 IEEE International Ultrasonics Symposium, IUS 2018. IEEE Computer Society, Vol. 2018-October. 8579841

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Ultrasonically-induced electrical potentials in demineralized bovine cortical bone

Mori, S., Makino, T., Koyama, D., Takayanagi, S., Yanagitani, T. & Matsukawa, M., 2018 Apr 1, In : AIP Advances. 8, 4, 045007.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2017

A new type wide-frequency-range shear viscosity sensor using c-axis tilted ScAlN thin film on temperature stable AT-cut quartz thick plate

Yamakawa, Y., Sano, K. H., Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092486

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A new type wide-frequency-range shear viscosity sensor using c-axis tilted ScAlN thin film on temperature stable AT-cut quartz thick plate

Yamakawa, Y., Sano, K., Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092520

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Broadband frequency viscositymeasurement using low TCF shear mode resonators consisting of C-axis tilted scaln thin film on thick at-cut quartz plate

Yamakawa, Y., Sano, K., Karasawa, R. & Yanagitani, T., 2017 Jul 26, TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems. Institute of Electrical and Electronics Engineers Inc., p. 2135-2138 4 p. 7994497

Research output: Chapter in Book/Report/Conference proceedingConference contribution

C-Axiszig-zag polarization inverted ScAlN multilayer for FBAR transformer rectifying antenna

Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092551

Research output: Chapter in Book/Report/Conference proceedingConference contribution

C-Axis zig-zag polarization inverted ScAlN multilayer for FBAR transformer rectifying antenna

Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8091618

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Effect of anisotropy on stress-induced electrical potentials in bovine bone using ultrasound irradiation

Matsukawa, S., Makino, T., Mori, S., Koyama, D., Takayanagi, S., Mizuno, K., Yanagitani, T. & Matsukawa, M., 2017 Apr 3, In : Applied Physics Letters. 110, 14, 143701.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Effects of negative oxygen ions generated during Sc ingot sputtering on electromechanical coupling of ScAlN film

Takayanagi, S. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092666

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Evaluation of the acoustoelectric effect in the thickness direction of c -plane ZnO single crystals by Brillouin scattering

Tomita, S., Yanagitani, T., Takayanagi, S., Ichihashi, H., Shibagaki, Y., Hayashi, H. & Matsukawa, M., 2017 Jun 21, In : Journal of Applied Physics. 121, 23, 235102.

Research output: Contribution to journalArticle

Film growth of c-axis parallel oriented ZnO on entire surface of silica glass pipe for SH-SAW pipe sensor

Takamura, Y., Takayanagi, S., Matsukawa, M., Ishida, C. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8091911

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Film growth of c-axis tilted ScAlN on the sapphire substrate for SAW devices

Tokuda, S., Takayanagi, S., Matsukawa, M. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092072

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Film growth of c-axis tilted ScAlN on the sapphire substrate for SAW devices

Tokuda, S., Takayanagi, S., Matsukawa, M. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092718

Research output: Chapter in Book/Report/Conference proceedingConference contribution

High electromechanical coefficient kt 2=19% thick ScAlN piezoelectric films for ultrasonic transducer in low frequency of 80 MHz

Sano, K. H., Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092005

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

High electromechanical coefficient kt 2=19% thick ScAlN piezoelectric films for ultrasonic transducer in low frequency of 80 MHz

Sano, K. H., Karasawa, R. & Yanagitani, T., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092425

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Quantitative thickness measurement of polarity-inverted piezoelectric thin-film layer by scanning nonlinear dielectric microscopy

Odagawa, H., Terada, K., Tanaka, Y., Nishikawa, H., Yanagitani, T. & Cho, Y., 2017 Oct 1, In : Japanese Journal of Applied Physics. 56, 10, 10PF18.

Research output: Contribution to journalArticle

The frequency switchable multi-layered BST/BaTiO3 epitaxial film resonator

Shimidzu, T., Yanagitani, T. & Wasa, K., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8092735

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The frequency switchable multi-layered BST/BaTiO3 epitaxial film resonator

Shimidzu, T., Yanagitani, T. & Wasa, K., 2017 Oct 31, 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE Computer Society, 8091518

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Thick ScAlN film for high efficient ultrasonic transducer in low frequency of 81 MHz

Sano, K. H., Karasawa, R. & Yanagitani, T., 2017 Jul 26, TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems. Institute of Electrical and Electronics Engineers Inc., p. 862-865 4 p. 7994185

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

Acoustic-Wave Velocities and Refractive Indices in an m-Plane GaN Single-Crystal Plate and c-Axis-Oriented ScAlN Films Measured by Brillouin Scattering Techniques

Ichihashi, H., Yanagitani, T., Suzuki, M., Takayanagi, S., Kawabe, M., Tomita, S. & Matsukawa, M., 2016 May 1, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63, 5, p. 117-125 9 p., 7438921.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Effects of energetic negative ions generated from sputtering targets on ScAlN film growth

Takayanagi, S., Matsukawa, M. & Yanagitani, T., 2016 Nov 1, 2016 IEEE International Ultrasonics Symposium, IUS 2016. IEEE Computer Society, Vol. 2016-November. 7728836

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Method for measuring polarity-inverted layered structure in dielectric thin films using scanning nonlinear dielectric microscopy

Odagawa, H., Terada, K., Nishikawa, H., Yanagitani, T. & Cho, Y., 2016 Aug 31, In : Ferroelectrics. 498, 1, p. 47-51 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Rapid and simultaneous measurement of longitudinal and shear wave velocities by Brillouin scattering from artificially induced phonons

Kawabe, M., Shibagaki, Y., Matsukawa, M., Yanagitani, T., Suzuki, M. & Takayanagi, S., 2016 Nov 1, 2016 IEEE International Ultrasonics Symposium, IUS 2016. IEEE Computer Society, 7728801. (IEEE International Ultrasonics Symposium, IUS; vol. 2016-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution