Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Takumi Suzuki Last modified date:2018.09.13

Assistant Professor / Measurement and Control Engineering / Department of Electrical Engineering / Faculty of Information Science and Electrical Engineering


Presentations
1. Yuta Onodera, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Akira Ibi, Takato Machi, Teruo Izumi, Takanobu Kiss, Electric Field vs. Current Density Characteristics in REBCO Coated Conductor over Wide Range of Electric Fields Including Flux Creep and Flux Flow Regimes, 4th HTS4Fusion Conductor Workshop, 2018.03.
2. Takanobu Kiss, Kohei Higashikawa, Takumi Suzuki, Yuhei Nishimiya, Yuta Onodera, Masayoshi Inoue, Mitsunori Igarashi, Kazuomi Kakimoto, Yasuhiro Iijima, Analysis and Modeling of Current Transport Properties in Long Length Coated Conductors(invited), 30th International Symposium on Superconductivity (ISS2017), 2017.12.
3. Yuta Onodera, Takanobu Kiss, Kohei Hisajima, Shyam Mohan, Kazutaka Imamura,Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Akira Ibi, Takato Machi, Teruo Izumi, Extended Current-Voltage Characteristics in Both Bi-2223 and RE-123 Tapes Over 8 Decades of Electric Fields Including Flux Creep and Flux Flow Regime, The 2nd Asian Applied Physics Conference, 2017.12.
4. Takumi Suzuki, Daiki Tsujino, Syunsuke Oomura, Kohei Higashikawa, Masayoshi Inoue, Valery Petrykin, Sergey Lee, Takanobu Kiss, Analysis of E-I characteristics of REBCO coated conductors under the influence of local Ic variation
, The 2nd Asian Applied Physics Conference, 2017.12.
5. Takanobu Kiss, Yuta Onodera, Shohei Noda, Kazutaka Imamura, Kohei Higashikawa, Takumi Suzuki, Masayoshi Inoue , Spatially Resolved Measurement on Local Electromagnetic Field Distribution in a Long Gd1Ba2Cu3O7-δ Coated Conductor during Magnetic Moment Relaxation by use of Hall Probe
Magnetometry
, The 2nd Asian Applied Physics Conference, 2017.12.
6. Shyam Mohan, Yuta Onodera, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Takanobu Kiss, Hall Probe Magnetometry for Measuring In-field Current Transport Properties of REBCO Coated Conductors
, The 2nd Asian Applied Physics Conference, 2017.12.
7. Takanobu Kiss, HTS Tapes Development in Japan: Fundamentals and Recent Progress (invited), Special at Changwon National University, 2017.10.
8. Takanobu Kiss, Yuta Onodera, Shohei Noda, Kohei Higashikawa, Kazutaka Imamura, Kohei Higashikawa, Takumi Suzuki, Masayoshi Inoue , Analysis of Magnetic Moment Relaxation in REBCO Coated Conductors by Use of Hall Probe Magnetometry, The 9th Asian Conference on Applied Superconductivity and Cryogenics (ACASC2017), 2017.11.
9. K. Hisajima, N. Numata, K. Higashikawa, T. Suzuki, M. Inoue, T. Kiss, Magnetic Microscopy for Magnetic Relaxation in RE-123 Coated Conductor with DC Transport Current and External Magnetic Field , The 13th biennial European Conference on Applied Superconductivity (EUCAS2017), 2017.09.
10. S. Bochi, H. Tatara, K. Higashikawa, M. Inoue, T. Suzuki, K. Nishi, M. Kodama, H. Tanaka, T. Kiss, Magnetic Microscopy for Nondestructive Characterization of Local Critical Current Distribution in Multi-filamentary MgB2 Wires with Magnetic Sheath Materials, The 13th biennial European Conference on Applied Superconductivity (EUCAS2017), 2017.09.
11. M. Inoue, T. Suzuki, S. Oomura, K. Imamura, K. Higashikawa, S. Awaji, K. Nakaoka, T. Izumi and T. Kiss, Enhancement of In-field Jc for TFA-MOD Processed Coated Conductors with BaZrO3 by Reducing One Coating Thickness (invited), IUMRS-ICAM 2017, 2017.08.
12. Takanobu Kiss, Takumi Suzuki, Kohei Higashikawa, Takahiro Fukuzaki, Yuhei Nishimiya, Daiki Tsujino, Shohei Noda, Yuta Onodera, Masayoshi Inoue, Mitsunori Igarashi, Kazuomi Kakimoto, Yasuhiro Iijima, In-field Characterization of Local Ic and n-indices as a Function of Longitudinal Coordinate in a Long-length GdBCO Coated Conductor, International Conference on Magnet Technology 25 (MT25), 2017.08.
13. Kohei Higashikawa, Takumi Suzuki, Masayoshi Inoue, Shinji Fujita, Yasuhiro Iijima, Takanobu Kiss, Current Capacity of Cu-sheathed Multi-filamentary Coated Conductors under the Influence of Spatial Variation of Local Critical Currents in Each Filament, International Conference on Magnet Technology 25 (MT25), 2017.08.
14. Takumi Suzuki, Syunsuke Oomura, Kazutaka Imamura, Masayoshi Inoue, Kohei Higashikawa, Satoshi Awaji, Koichi Nakaoka, Teruo Izumi, Takanobu Kiss, Enhancement of in-field critical current density of BaZrO3 added (Y, Gd)BCO coated conductors by reduced once-coat-layer-thickness in multi-coating TFA-MOD method, International Conference on Magnet Technology 25 (MT25), 2017.08.
15. Takanobu Kiss, Kohei Higashikawa, Takumi Suzuki, Takahiro Fukuzaki, Daiki Tsujino, Yuta Onodera, Masayoshi Inoue, Description of temperature-, magnetic-field, and position-dependent current-voltage characteristics in high Tc superconducting long length coated conductors, CEC-ICMC 2017, 2017.07.
16. Takanobu Kiss, Kohei Higashikawa, Takahiro Fukuzaki, Yuta Onodera, Takumi Suzuki, Masayoshi Inoue, Takato Machi, Akira Ibi, Teruo Izumi, Statistical Behavior of Positional Variation Critical Current Density in Long RE-123 Coated Conductors, 29th International Symposium of Superconductivity (ISS2016), 2016.12.
17. Masayoshi Inoue, Kazutaka Imamura, Takumi Suzuki, Shogo Ichimura, Takahiro Fukuzaki, Kohei Higashikawa, Teruo Izumi, Takanobu Kiss, Correlated Study between Critical Current Density at 77 K and That of Low Temperature In-Filed Conditions of Various REBCO Coated Conductors, 29th International Symposium of Superconductivity (ISS2016), 2016.12.
18. Kohei Hisajima, Kohei Higashikawa, Takumi Suzuki, Kazutaka Imamura, Masayoshi Inoue, Takanobu Kiss, Magnetic Microscopy for the Characterization of Relaxation in Multi-filamentary Bi-2223 Tape with DC Transport Current and External Magnetic Field, 29th International Symposium of Superconductivity (ISS2016), 2016.12.
19. Takanobu Kiss, Kohei Higashikawa, Takumi Suzuki, Masayoshi Inoue, Teruo Izumi, Yasuhiro Iijima, Comparison among Spatially Resolved Measurements of Critical Currents in High- T
c Superconducting Long Tapes, The 1st Asian Applied Physics Conference, 2016.12.
20. Takumi Suzuki, Takahiro Fukuzaki, Kohei Higashikawa, Masayoshi Inoue, Takanobu Kiss, Analysis of local Ic variation and I -V characteristics for long REBCO coated conductors, The 1st Asian Applied Physics Conference, 2016.12.
21. Shunsuke Oomura, Takumi Suzuki, Lyu Lin, Masayoshi Inoue, Kohei Higashikawa, Takanobu Kiss, Analytical Expression of Current Transport Properties in Commercially Available Bi-2223 HTS Wire, The 1st Asian Applied Physics Conference, 2016.12.
22. Takumi Suzuki, Takahiro Fukuzaki, Kohei Higashikawa, Masayoshi Inoue, Takanobu Kiss, Analytical expression of local I -V characteristics for long length REBCO coated conductors under the local Ic fluctuation, 1st Asian ICMC and CSSJ 50th Anniversary Conference, 2016.11.
23. Yuta Onodera, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Tomo Yoshida, Akira Ibi, Takato Machi, Teruo Izumi, Takanobu Kiss, Measurement and analysis of in-field critical currents in EuBCO coated conductor under the influence of flux creep, 1st Asian ICMC and CSSJ 50th Anniversary Conference, 2016.11.
24. Takanobu Kiss, Takahiro Fukuzaki, Shougo Ichimura, Yuta Onodera, Yuhei Nishimiya, Hiroaki Oofuji, Xiang Guo, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Shinji Fujita, Yasuhiro Iijima, Takato Machi, Akira Ibi, Teruo Izumi, Zhenan Jiang, Rodney Badcock, Nicholas Long, In-plane Distribution of Critical Current Density in Long Coated Conductor (invited), 1st Asian ICMC and CSSJ 50th Anniversary Conference, 2016.11.
25. Takanobu Kiss, Kohei Higashikawa, Masayoshi Inoue, Takumi Suzuki, Hitoshi Kitaguchi, Teruo Izumi, Multi-scale analysis and modeling of current transport properties in long length HTS tapes under the influence of local Ic fluctuation, 2016 Applied Superconductivity Conference (ASC 2016), 2016.09.
26. Takumi Suzuki, Lin Lyu, Syunsuke Omura, Ken Takasaki, Masayoshi Inoue, Kohei Higashikawa, Takanobu Kiss, Analytical expression of in-field current transport properties in a commercially available Bi-2223 high Tc superconducting wire, 2016 Applied Superconductivity Conference (ASC 2016), 2016.09.
27. Yuta Onodera, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Akira Ibi, Tomo Yoshida, Takato Machi, Teruo Izumi, Takanobu Kiss, Measurement and analysis of magnetization relaxation in REBCO tape coated conductor, 2016 Applied Superconductivity Conference (ASC 2016), 2016.09.
28. Shogo Ichimura, Ken Takasaki, Takumi Suzuki, Yuta Onodera, Kohei Higashikawa, Masayoshi Inoue, Akira Ibi, Tomo Yoshida, Teruo Izumi, Takanobu Kiss, Correlation between in-field critical current at liquid nitrogen temperature and that at low temperature in BaHfO3 doped EuBCO coated conductors, 2016 Applied Superconductivity Conference (ASC 2016), 2016.09.
29. Masayoshi Inoue, Ken Takasaki, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Akira Ibi, Tomo Yoshida, Teruo Izumi, Takanobu Kiss, Current transport property of BaHfO3 doped EuBCO coated conductor over a wide range of temperature and magnetic field up to 25T, 2016 Applied Superconductivity Conference (ASC 2016), 2016.09.
30. Yuta Onodera, Kazutaka Imamura, Takumi Suzuki, Kohei Higashikawa, Masayoshi Inoue, Akira Ibi, Tomo Yoshida, Takato Machi, Teruo Izumi, Takanobu Kiss, Magnetization Relaxation and E-J Characteristics in a REBCO Coated Conductor with BaHfO3 Artificial Pinning Centers, 2016 Materials Research Society Spring Meeting & Exhibit (2016 MRS Spring Meeting & Exhibit), 2016.04.
31. Y. Onodera, K. Imamura, T. Suzuki, K. Higashikawa, M. Inoue, A. Ibi, T. Yoshida, T. Izumi, T. Kiss, Measurement and Analysis of Magnetization Relaxation at Step-cooling in a BaHfO3 Doped EuBCO Coated Conductor
, JSAP Kyushu Chapter Annual Meeting 2015, 2015.12.
32. T. Kiss, K. Higashikawa, M. Inoue, Takumi Suzuki, K. Imamura, Y. Onodera, D. Uetsuhara, K. Takasaki, H. Kitaguchi, A. Ibi, T. Machi, T. Izumi, Local Ic Fluctuation and Its Influence on Global Current-Voltage Characteristics in Long Length HTS Tapes (invited)
, 28th International Symposium on Superconductivity (ISS 2015), 2015.11, Spatial homogeneity in long length HTS tapes is one of the most important material performances for practical applications. While in-field current transport properties have been studied widely using short piece samples, local Ic fluctuation and its influence on global current transport properties in long length HTS tapes have not been understood yet. In this study, we carried out spatially resolved Ic measurements on long length HTS tapes, both RE-123 and Bi-2223, by the combination with multiple measurements including reel-to-reel high resolution scanning Hall probe microscopy (RTR-SHPM), four-probe measurements and X-ray tomography. We have investigated statistical behavior of local Ic fluctuation, local microstructural disorder and their influence on current-voltage (I-V) characteristics in the long length HTS tapes. From the analysis over wide range of length scale, the influence of spatial resolution of the measurements and sample length have been discussed from the view point of bandwidth of the spatial frequency, f. When the sample length becomes longer than several cm, the influence of 1/f type fluctuation becomes significant whereas the fluctuation is white noise type in short piece length. It has been shown that such long period fluctuation as 1/f influences transport I-V characteristics in long length tape. Relationship between observed longitudinal Ic distribution by the RTR-SHPM and global I-V characteristics has been derived. Not only monolithic tape strands but also multi-filamentary striated tapes have been studied. Influence of filament width on the Ic fluctuation has been discussed.

Acknowledgements: This work is supported by the AMED and the METI as a project of “Development of HTS Coiling Technology”, “JST: S-Innovation” and "JSPS: KAKENHI (24360122, 26630113).”.
33. T. Kiss, K. Higashikawa, M. Inoue, Takumi Suzuki, K. Imamura, Y. Onodera, D. Uetsuhara, K. Takasaki, A Ibi, T. Izumi, H. Kitaguchi, Comparison between RE-123 and Bi-2223 long length tapes from the view point of current transport properties influencing thermal stability
, International Workshop on Cooling System for HTS Application (IWC-HTS), 2015.10.