Papers - SEKIGUCHI Koji
about 35-
Magnetic field detection with single mode spin wave interference in asymmetric structure
Nishitani, Y; Kaneko, Y; Sekiguchi, K
SCIENTIFIC REPORTS 15 ( 1 ) 2025.2
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Frequency-dependent breakdown of backward volume spin-wave soliton formation
Iwata, T; Nezu, S; Sekiguchi, K
APPLIED PHYSICS LETTERS 125 ( 22 ) 2024.11
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Magnonic noise in the parametric spin-wave pumping process
Nishiwaki, Y; Nezu, S; Sekiguchi, K
JAPANESE JOURNAL OF APPLIED PHYSICS 63 ( 10 ) 2024.10
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Enhanced signal-to-noise ratio in magnonic logic gates via dipole coupling
Hayashi, R; Nezu, S; Sekiguchi, K
PHYSICAL REVIEW APPLIED 22 ( 3 ) 2024.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Spin-wave emission using a V-shaped antenna
Yoshida, R; Nezu, S; Sekiguchi, K
JAPANESE JOURNAL OF APPLIED PHYSICS 63 ( 9 ) 2024.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Nagase, S; Nezu, S; Sekiguchi, K
PHYSICAL REVIEW APPLIED 22 ( 2 ) 2024.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Unconventional parametric spin-wave pumping in single-crystal iron films
Nezu, S; Scheike, T; Sukegawa, H; Sekiguchi, K
PHYSICAL REVIEW B 109 ( 18 ) 2024.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Furukawa, R; Nezu, S; Eguchi, T; Sekiguchi, K
NPG ASIA MATERIALS 16 ( 1 ) 2024.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Spin-wave enhancement using feedback-ring structure
Masashi Iwaba, Koji Sekiguchi
62 ( 10 ) 2023.10 [Reviewed]
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
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Spin-wave interconversion via thermoelectric point-contact control
Takuro Eguchi, Shoki Nezu, Yu Naemura, and Koji Sekiguchi
Physical Review Research 4 ( 3 ) 033135 2022.8 [Reviewed]
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
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High-density spin-wave soliton train
Eguchi Takuro, Kawase Mikito, Sekiguchi Koji
APPLIED PHYSICS EXPRESS 15 ( 8 ) 2022.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Propagating backward-volume spin waves in epitaxial Fe films
Nezu S., Scheike T., Sukegawa H., Sekiguchi K.
AIP ADVANCES 12 ( 3 ) 035320-1 - 035320-6 2022.3 [Reviewed]
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Spin-wave switching using dynamic magnonic crystal
Iwaba Masashi, Sekiguchi Koji
APPLIED PHYSICS EXPRESS 14 ( 7 ) 073002-1 - 073002-5 2021.7 [Reviewed]
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Publisher：IOP PUBLISHING LTD Joint Work
In this study, switching of the spin-wave propagation was investigated using an yttrium iron garnet (YIG) waveguide. A dynamic magnonic crystal (DMC) was designed to control the non-reciprocal surface spin waves. The DMC controlled the periodic modulation field on the YIG film and caused a strong Bragg reflection on the surface spin waves. The maximum effect of Bragg reflection was analyzed by the wavelet to be 95% of its intensity. The spin-wave switching by the DMC will be a promising method of carrier-flow control for constructing the integrated magnonic circuits.
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Nezu S., Sekiguchi K.
Transaction of the Magnetics Society of Japan Special Issues 5 ( 1 ) 6 - 9 2021.5
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Magnetics Society of Japan Joint Work
<p> The spin-wave propagation characteristics in ferromagnetic thin films with a multi-domain state were investigated by micromagnetic simulations and electrical measurements. The simulations showed that the spin waves propagated along the domain wall when excited at low frequencies. The resonance frequency shifted to a higher frequency when an external magnetic field was applied normal to the waveguide. By using a vector network analyzer, spin-wave propagation at the predicted resonance frequency was detected. The external magnetic field dependence of the resonance frequency agreed with the simulation result.</p>
Other Link： https://ci.nii.ac.jp/naid/130008033615
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磁壁おけるスピン波伝播の研究
関口 康爾
日本磁気学会誌 － 2021 [Reviewed]
Language：The in addition, foreign language Publishing type：Research paper (scientific journal) Single Work
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Strong Absorption Effect for Propagating Backward Spin-Waves by Double Magnonic Crystal
Iwaba M., Fujiwara S., Sekiguchi K.
Transaction of the Magnetics Society of Japan Special Issues 4 ( 1 ) 18 - 22 2020.5
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Magnetics Society of Japan Joint Work
Other Link： https://ci.nii.ac.jp/naid/130007802673
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Numerical study on the enhancement of the magneto-optic Kerr effect using a dielectric thin film
Tachizaki Takehiro, Mizuno Hiroyuki, Sekiguchi Koji
JAPANESE JOURNAL OF APPLIED PHYSICS 59 ( SE ) EA06-1 - EA06-5 2020.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Electric detection of nonlinear effect upon spin-wave spin current
Kawase Mikito, Iwaba Masashi, Sekiguchi Koji
JAPANESE JOURNAL OF APPLIED PHYSICS 59 ( SE ) ED01-1 - ED01-6 2020.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Magnetics and Optics Research FOREWORD
Okamoto Satoshi, Munekata Hiro, Goto Taichi, Kohda Makoto, Matsuda Iwao, Sekiguchi Koji, Shiratsuch … Show more authors
Okamoto Satoshi, Munekata Hiro, Goto Taichi, Kohda Makoto, Matsuda Iwao, Sekiguchi Koji, Shiratsuchi Yu, Antos Roman Hide authors
JAPANESE JOURNAL OF APPLIED PHYSICS 59 2020.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Three port logic gate using forward volume spin wave interference in a thin yttrium iron garnet film
Goto Taichi, Yoshimoto Takuya, Iwamoto Bungo, Shimada Kei, Ross Caroline A., Sekiguchi Koji, Granov … Show more authors
Goto Taichi, Yoshimoto Takuya, Iwamoto Bungo, Shimada Kei, Ross Caroline A., Sekiguchi Koji, Granovsky Alexander B., Nakamura Yuichi, Uchida Hironaga, Inoue Mitsuteru Hide authors
SCIENTIFIC REPORTS 9 2019.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Time-domain propagating spin-wave spectroscopy for forward spin waves in a ferromagnetic metal
K. Sekiguchi, D. Chiba, and T. Tachizaki
Japanese Journal of Applied Physics (SELECTED TOPICS IN APPLIED PHYSICS) 57, 57 ( 0902B4 ) 2018
Language：English Publishing type：Research paper (scientific journal) Joint Work
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The role of Snell's law for a magnonic majority gate
N. Kanazawa, T. Goto, K. Sekiguchi, A. B. Granovsky, H. Takagi, Y. Nakamura, and M. Inoue
Scientific Reports 7 7898 - 1 - 7898-8 2017.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Nature Joint Work
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Spin wave propagation in cubic anisotropy materials
K. Sekiguchi, S.-W. Lee, H.Sukegawa, N. Sato, S.-H. Oh, R.D. McMichael, and K.-J. Lee
NPG Asia Materials 9 2017.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Nature Joint Work
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Demonstration of a robust magnonic spin wave interferometer
N. Kanazawa, T. Goto, K. Sekiguchi, A. B. Granovsky,C. A. Ross, H. Takagi,Y. Nakamura, and M. Inoue
Scientific Reports 6 30268 - 1 – 30268-8 2016.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Nature Joint Work
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Current-induced modulation of backward spin-waves in metallic microstructures
N. Sato, S.-W. Lee, K.-J. Lee and K. Sekiguchi
Journal of Phys. D: Appl. Phys 50 ( 9 ) 094004 2016.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：IOP Joint Work
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Phase stability of magnonic logic operation in micro-fabricated metallic wires
N. Sato, S.-J. Lee, S.-W. Lee, K.-J. Lee, and K. Sekiguchi
IOP 9 083001 - 1 – 083001-3 2016.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Applied Physics Express Joint Work
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Spin wave absorber generated by artificial surface anisotropy for spin wave device network
N. Kanazawa, T. Goto, K. Sekiguchi, A. B. Granovsky, H. Takagi, Y. Nakamura, and M. Inoue
AIP Advance 6 ( 9 ) 095204 2016.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work
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Spin wave differential circuit for realization of thermally stable magnonic sensors
T. Goto, N. Kanazawa, A. Buyandalai, H. Takagi, Y. Nakamura, S. Okajima, T. Hasegawa, A. B. Granovs … Show more authors
T. Goto, N. Kanazawa, A. Buyandalai, H. Takagi, Y. Nakamura, S. Okajima, T. Hasegawa, A. B. Granovsky, K. Sekiguchi, C. A. Ross, and M. Inoue Hide authors
Applied Physics Letters 106 ( 13 ) 132412 - 1 -132412-3 2015.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work
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Criteria for electric determination of anti-vortex creation in ferromagnetic thin film
M. Goto, Y. Nozaki, and K. Sekiguchi
Japanese Journal of Applied Physics 54 023001 - 1 -023001-4 2015.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：IOP Joint Work
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Propagating spectroscopy of backward volume spin wave in a metallic FeNi film
N. Sato, N. Ishida, T. Kawakami, K. Sekiguchi
Applied Physics Letters 104 ( 3 ) 032411 - 1 - 032411-4 2014.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work
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Excitation of Continuous Magnetostatic Surface Spin Wave in Ferromagnetic Thin Films
N. Sato, K. Sekiguchi, Y. Nozaki
Journal of Magnetics Society of Japan 1 ( 37 ) 214 - 217 2013.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Magnetics society of japan Joint Work
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Frequency dependence of critical switching asteroid of CoCrPt-SiO2 granular film under 50 ns microwave impulse
N. Ishida, Y. Soeno, K. Sekiguchi, and Y. Nozaki
Journal of Applied Physics 114 043915 - 1 - 043915-5 2013.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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eal-time observation of electrical vortex core switching
K. Nakano, K. Tanabe, R.Hiramatsu, D.Chiba, N.Ohshima, S. Kasai, T. Sato,Y. Nakatani, K. Sekiguchi, … Show more authors
K. Nakano, K. Tanabe, R.Hiramatsu, D.Chiba, N.Ohshima, S. Kasai, T. Sato,Y. Nakatani, K. Sekiguchi, K.Kobayashi, and T. Ono Hide authors
Applied Physics Letters 102 072405 - 1 - 072405-3 2013.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work
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Electrical Demonstration of Spin-Wave Logic Operation
N. Sato, K. Sekiguchi
Applied Physics Letters 6 063001 - 1 - 063001-3 2013.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work
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Room temperature microwave-assisted recording on 500-Gbpsi-class perpendicular medium
Y. Nozaki, N. Ishida, Y. Soeno,and K. Sekiguchi
Journal of Applied Physics 112 083912 - 1 - 083912-7 2012.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Joint Work